(ARCHIVE) List of Remaining 1AESS Offices

[ThoughtPhreaker 173]

After scanning a good amount of numbers in a Maryland 1A, I've discovered something odd. Most numbers, even subscriber numbers, will start ringing without the familiar click before the ringing. In fact, the only numbers that make any sort of relay click are the numbers leading to intercept, regardless of exchange. Having heard this ubiquitous intercept system many times before, I can safely say that it will not make any noises whatsoever before an intercept report on a fully digital system. Here are a few examples.

410-362-9973 - Sweep tone. Broken?

410-362-9997 - Trunk noise test

410-362-9979 - Disconnected number

410-362-9978 - Not In Service number

Does anybody have any ideas as to what could be happening down here? My guess is that they're in the process of phasing out the 1A. I'll post the rest of the results of my scan after I get back from a family trip to North Carolina.

[3d 0]

That's weird that the intercepts CHUNK but the test numbers don't. My guess is that it's a digital switch with recordings from the 1AE days.

4103629973.wav4103629997.wav4103629979.wav4103629978.wav

[unity 1]

They could be using some sort of add-on intercept machine that has an audible relay in it. Could always call 'em up and ask them.

[Fone Ranger 0]

After scanning a good amount of numbers in a Maryland 1A, I've discovered something odd.

*Awww!* From the topic title I thought you'd found a dialup or PAD which gave you access to a 1AESS I/O terminal. You disappoint me, Mr Bond...

[ThoughtPhreaker 173]

Strangely enough, I called again, this time from the DMS-100 serving my house, as I was calling from a 5ESS beforehand. This time, I called a few numbers, all of them giving the familiar click before they ring. I'm guessing it has to do with the time your end office lets you hear what's happening on the outgoing trunk. For those of you served out of an office that doesn't let you hear the relays, I recommend going out to a payphone or getting a calling card served from a DMS-100.

When I get through copying them from my minidisk, I'll post a comparison of the two switches making calls to the 1A office in Odessa, Texas, both from the same phone using the same recording method.

The various recordings scattered throughout thus exchange are announced by various people. I believe them to be "Cornbreath", Pat Trumbull and a few switchmen.

9900 - NIS

9901 - Modem

9902 - Ringout

9903 - "Hello. I'm SSCU. Your identification, please"

9904 - Ringout

9905 - Ringout

9906 - Ringout

9907 - "Hello, I'm SSCU. Your identification, please"

9908 - Ringout

9909 - Ringout

9910 - CBCAD

9911 - Ringout

9912 - Silent Answer

9913 - Silent Answer

9914 - Busy

9915 - Ringout

9916 - Ringout

9917 - Ringout

9918 - CBCAD, five digit codes may have changed.

9919 - Ringout

9920 - Silent Answer

9921 - Silent Line

9922 - Ringout

9923 - Ringout

9924 - Carrier Access Code required

9925 - All Circuits Busy

9926 - "Forty Three, Channel zero"

9927 - Silent Termination

9928 - Ringout

9929 - Ringout

9930 - "950 digits" recording

9931 - Silence

9932 - "Digits 950 not necessary" recording

9933 - Ringout

9934 - Ringout

9935 - Ringout

9936 - Ringout

9937 - The code you have dialed is not working

9938 - Three digit areacode plus number is required for all numbers in Maryland

9939 - "Cannot process custom calling request" recording

9940 - Reorder

9941 - "Reciever off hook" recording

9942 - "Dialing one is not necessary" recording

9943 - "Call did not go through" recording

9944 - "Coin deposit required" recording

9945 - CBCAD recording, different announcer and text

9946 - "Dialing Error" recording

9947 - "Custom calling failure" recording

9948 - Reorder

9949 - Ringout

9950 - Static when picks up, pulsing 440 hz, eventually goes to other tone.

9951 - Ringout

9952 - NIS

9953 - Ringout

9954 - Ringout

9955 - Ringout

9956 - Silent Answer

9957 - Ringout

9958 - Ringout

9959 - Ringout

9960 - NIS

9961 - NIS

9962 - Ringout

9963 - Ringout

9964 - Ringout

9965 - Ringout

9966 - Ringout

9967 - Ringout

9968 - Ringout

9969 - Busy

9970 - Reorder

9971 - Ringout

9972 - Ringout

9973 - Sweep; works sometimes, will also go to static in mid-sweep other times.

9974 - NIS

9975 - Ringout

9976 - Goes to your local or local tandem recording

9977 - Ringout

9978 - NIS

9979 - DISCO

9980 - Ringout

9981 - NIS

9982 - Silent Answer

9983 - Business

9984 - NIS

9985 - Ringout

9986 - Silent Answer

9987 - Milliwatt

9988 - Milliwatt

9989 - Milliwatt

9990 - Ringout

9991 - NIS

9992 - Milliwatt

9993 - Number changed to non-published

9994 - Ringout

9995 - NIS

9996 - Ringout

9997 - Trunk noise test

9998 - Picks up, short burst of 2200 hz, hangs up

9999 - Picks up, short burst of 2200 hz, hangs up

*Awww!* From the topic title I thought you'd found a dialup or PAD which gave you access to a 1AESS I/O terminal. sad.gif You disappoint me, Mr Bond...

Don't feel dissapointed just yet. The modem seems to need a nudge string of some sort, much like every other modem associated with a central office I've seen.

EDIT: Fixed "Cornbreath's" name. Also, if anyone would like to play around with the trunk noise tester, it responds to touchtones by producing noise, tones, or both. Any insight into what 9950 is would be appreciated.

Edited July 4, 2006 by ThoughtPhreaker

[JmanA9 13]

This list was posted on the centraloffice Yahoo group a few days ago. It seems to be the most current and accurate list of #1AESS switches remaining. If you're interested in the old network, and you don't read this list, you should.

http://groups.yahoo.com/group/centraloffice/message/6276

Phreak away!

[dmine45 21]

This list was posted on the centraloffice Yahoo group a few days ago. It seems to be the most current and accurate list of #1AESS switches remaining. If you're interested in the old network, and you don't read this list, you should.

http://groups.yahoo.com/group/centraloffice/message/6276

Phreak away!

Yup.. and I know where two of them are at (the two in Virginia).

Don't know what there is to phreak about these COs though. Though if you like old analog sounds, these do have their fair share!

[ThoughtPhreaker 173]

I don't know if this applies to 1As anymore since they've been fitted with CLASS features, but someone once told me if you wanted to hold the CDPRs up indefinitely and listen to crosstalk, you could dial # or * every 10-20 seconds.

Also, supposedly they'll route calls to 101-0x PIC codes, but they never received a software patch to support 101-5x or 6x codes. If you *do* check one out (and if the Baltimore 1A is any indication of what the two others are like, I totally don't blame you for not paying a visit), I'd take a look at those two things.

As for leet phreakz0r things to look for, I'm sure there's something out there - there always is .

I got the impression the Norfolk 1A was in a place where you aren't very likely to get your ass capped. What's your impression of it?

[dmine45 21]

I don't know if this applies to 1As anymore since they've been fitted with CLASS features, but someone once told me if you wanted to hold the CDPRs up indefinitely and listen to crosstalk, you could dial # or * every 10-20 seconds.

Also, supposedly they'll route calls to 101-0x PIC codes, but they never received a software patch to support 101-5x or 6x codes. If you *do* check one out (and if the Baltimore 1A is any indication of what the two others are like, I totally don't blame you for not paying a visit), I'd take a look at those two things.

As for leet phreakz0r things to look for, I'm sure there's something out there - there always is .

I got the impression the Norfolk 1A was in a place where you aren't very likely to get your ass capped. What's your impression of it?

The one in Richmond is definitely on the "wrong side of town", but the one in Norfolk is in a nice quiet neighborhood. Never been to the in Baltimore.

As for the 101-5x and 101-6x codes - at least one 1A in Louisiana supports them, knowing from a friend of mine who lives there.

As for the other stuff - I'll check it out next time I'm at a 1A. Not too often I get down to the two Virginia ones.

[JmanA9 13]

Mark J. Cuccia just updated his list of remaining 1AESS switches on the centraloffice group. A big thanks goes out to him for keeping track of each carrier's regulatory releases. FWIW, I realized that the link I posted back in February is only available to registered members of the group, so I will post the updated list here. Let me first bring your attention to the offices that are slated for removal:

10-June-2011: 205-808,841,849 Birmingham, AL

15-July-2011: 713-330,450,451,453,455,637 Houston, TX

4Q-2011: 248-681,682,683,706.738 Pontiac, MI

4Q-2011: 410-233,362,566,624,945,947 Baltimore, MD - ThoughtPhreaker has posted scans of this 1AESS on this message board.

VeriZon/Bell-Atlantic/C&P (03):

-------------------------------

BLTMMDEDCG0 Baltimore MD

* TO BE REPLACED w/Digital Packet Remote BLTMMDEDRP0 in 2011/4Q *

"Edmondson Avenue"

410-233,362,566,624,945,947

RCMDVAHLCG0 Richmond VA

"Hull Street"

804-230,231,232,233,291,319

NRFLVAGSCG0 Norfolk-Zone-02 VA

"Granby Street"

757-480,531,583,587,588

at&t/SBC/Ameritech/Michigan-Bell (03):

--------------------------------------

PNTCMIWSCG0 Pontiac MI

* TO BE REPLACED w/Digital Packet Remote PNTCMIWSRP0 in 2011/4Q *

"West"

248-681,682,683,706.738

LNNGMISOCG0 Lansing MI

"South"

517-272,393,394,882,887

GDRPMIBL770 Grand Rapids MI

"BEll"

(the co-located GDRPMIBLDS1 Nortel-DMS-100 has some 616-23x codes,

which were known as 'BEll-x' in the 2L-5N days)

616-770

at&t/SBC/Ameritech/Illinois-Bell (02):

--------------------------------------

CHCGILAUCG0 Chicago IL

"AUStin"

773-261,287,378,379,473,626,854,921

OKPKILOPCG1 Oak Park IL

708-209,366,383,386,445,488,524,660,763,771,848

at&t/BellSouth/Southern-Bell (18):

----------------------------------

ATLNGAAD69F Atlanta GA

"Adamsville"

404-472,505,691,696,699

ATLNGACD28F Atlanta GA

"Columbia Drive"

404-282,284,286,289,534

ATLNGAGR24F Atlanta GA

"Gresham"

404-212,241,243,244,328,381

ATLNGAHR79E Atlanta GA

"Hollywood Road"

404-792,794,799

ATLNGAWE75F Atlanta GA

"West End"

404-752,753,755,756,758

CRTNGAMA83C Carrollton GA

770-214,830,832,834,836,838

678-796

FRBNGAEB96A Fairburn GA

Atlanta-South ratecenter

"East Broad"

770-306,774,892,964,969

LGRNGAMA88C LaGrange GA

706-242,812,837,845,882,883,884,885 LaGrange GA ratecenter

334-982 Oakland (Chambers) AL ratecenter

(NOTE that there is also a co-located LGRNGAMARS1 Nortel-RSC)

SVNHGADE35C Savannah GA

"Derenne Avenue"

912-303,351,352,353,354,355,356,691,692

WYCRGAMA28C/02T Waycross GA

912-283,284,285,287,338

AGSTGAFL79C Augusta GA

"Fleming"

706-560,771,772,790,792,793,796,798

WRRBGAMA92C Warner-Robins GA

478-322,328,329,542,918,922,923,929,975

JCBHFLMA24E Jacksonville Beach FL

904-241,242,246,247,249,270

JCVLFLRV38E Jacksonville FL

"Riverside"

904-381,384,387,388,389,981

FTLDFLSU74E Fort Lauderdale FL

"Sunrise"

954-572,578,741,742,746,747,748,749

HLWDFLHA45E Hollywood FL

"Hallandale"

954-454,455,456,457,458,516

MIAMFLBA85E Miami FL

"Bayside"

305-250,285,854,856,857,858,859,860

786-314

MIAMFLME32E Miami FL

"Metro"

305-324,325,326,545,547,548,549,550,560,585

(NOTE that there is also a co-located MIAMFLMERS0 Lucent/Alcatel-5ESS-Remote)

at&t/BellSouth/South-Central-Bell (08):

---------------------------------------

NSVLTNINCG0 Nashville TN

"Inglewood"

615-226,227,228,258,262,650

BRHMALEN78E Birmingham AL

"Ensley"

205-206,780,781,783,785,786,787,788

BRHMALTA84E Birmingham AL

* TO BE REPLACED w/Digital Packet Remote BRHMALTARPA on 10-June-2011 *

"Tarrant"

205-808,841,849

BSMRALMA42E Bessemer AL

205-424,425,426,428,481

SHPTLAHDCG0 Shreveport LA

"Highland"

318-219,861,862,864,865,866,868,869

SHPTLAQBCG0 Shreveport LA

"Queensboro"

318-526,621,631,632,635,636,638

LFYTLAMACG1/04T Lafayette LA

337-231,232,233,234,235,236,237,261,264,265,266,267,268,269,262,572,920

(NOTE that there is also a co-located LFYTLAMADS0/0GT Nortel-DMS-100/200/TOPS)

LFYTLAVMCG0 Lafayette LA

"Vermillion"

337-216,273,294,295,406,981,983,984,988,989,991,993

at&t/SBC/Southwestern-Bell (21):

--------------------------------

STLSMO04CG0 St.Louis MO

"FOrest"

314-361,367,454,758,823,826,829,848,855,879

STLSMO05CG0 St.Louis MO

"JEfferson"

314-286,289,321,371,531,533,534,535,652,658

(NOTE that there is also a co-located STLSMO05RS2 Lucent/Alcatel-5ESS-Remote)

STLSMO08CG0 St.Louis MO

"PRospect"

314-268,577,664,762,771,772,773,776,865

STLSMO23CG0 Ladue MO ratecenter

"Overland"

314-253,423,426,427,428,429,538,733,890

STLSMO24CG0 Ladue MO ratecenter

"Riverview"

314-388,867,868,869

STLSMO40CG0 Ladue MO ratecenter

"Florissant"

314-830,831,837,838,839,921,972

STLSMO43CG0 Ladue MO ratecenter

"Hazelwood"

314-551,731,895

ELPSTXNECG0 El Paso TX

"Northeast"

915-744,745,751,755,757,759

ODSSTXLICG0 Odessa TX

"Lincoln"

432-331,332,333,334,335,337 Odessa TX ratecenter

432-580,532 Odessa 'EACS' TX ratecenter

DLLSTXGPCG0 Dallas TX

"Grand Prairie" TX ratecenter

972-237,262,264,266,282,504,642 Grand Prairie TX ratecenter

972-260,263,269,558,901 Grand Prairie 'EMS' TX ratecenter

DLLSTXHACG0 Dallas TX

"HAmilton"

214-421,426,428,565,928

DLLSTXWHCG0 Dallas TX

"WHitehall"

214-779,941,942,943,944,946,947,948

FTWOTXATCG0 Ft.Worth TX

"ATlas" TX (ratecenter and 2L-5N name)

817-284,580,590,595 Atlas TX ratecenter

817-589 Atlas 'EMS' TX ratecenter

817-280,282,285 Euless TX ratecenter

817-268 Euless 'EMS' TX ratecenter

FTWOTXGLCG0 Ft.Worth TX

"GLendale" TX (ratecenter and 2L-5N name)

817-446,451,457,492,496 Glendale TX ratecenter

817-429,654,930 Glendale 'EMS' TX ratecenter

FTWOTXJECG0 Ft.Worth TX

"JEfferson"

817-413,531,534,535,536

FTWOTXWACG0 Ft.Worth TX

"WAlnut"

817-207,920,921,922,923,924,926,927

HSTNTXADCG0 Houston (Suburban) TX

"Aldine"

281-219,442,449,590,985,986,987

(NOTE that there is also a co-located HSTNTXADDS0 Nortel-DMS-100;

this DMS-100 -DS0 is to be replaced with a Digital Packet Remote -RP0

in April 2011)

HSTNTXGLCG0 Houston TX

* TO BE REPLACED w/Digital Packet Remote HSTNTXGLRP0 on 15-July-2011 *

"GLendale"

713-330,450,451,453,455,637

HSTNTXIDCG0 Houston TX

"IDlewood"

713-413,433,434 Houston TX ratecenter

713-340,436 Houston Suburban TX ratecenter

HSTNTXWLCG0 Houston (Suburban) TX

"West Ellington"

281-464,481,484,921,929

BUMTTXTECG0 Beaumont TX

"TErminal"

409-212,654,757,784,785,813,827,832,833,835,838,839,841,868,880

(NOTE that there is also a co-located BUMTTXTEDS0 Lucent/Alcatel-5ESS,

and ALSO the (Tandem ONLY) BUMTTXTE03T Nortel-DMS-100/200/TOPS)

[ThoughtPhreaker 173]

http://thoughtphreak.../41036299XX.txt Here's the scan in question. Maryland is kind of an unpredictable place to scan, especially at the time I made that, so it was a real treat to find this.

I went back over the numbers when I saw the thread. It turns out 9920 and 9921 are some kind of crazy looparound test line. If you've never had a chance to talk through a 1AESS before, do yourself a favor, especially in a time like now.

By the way, it's important to realize that a cutover announcement is usually a pretty set in stone thing, but they're always a little strange - particularly with 1AESSes. The reason they're still around usually has to do with the area being classified as low revenue, so they're really by no stretch of the imagination a company's priority. Most cutovers are always a few days late, and in some cases, never happen at all. Back in 2009 (or so), the Pontiac 1AESS was scheduled to be replaced by an EWSD, but someone didn't have the heart to do it apparently.

EDIT: While we're talking about switches on this list, I found the combination of 'pretend high tech sounds' and 'guy holding a microphone up to a speaker' on 281-227-9960 strangely hilarious.

Edited April 5, 2011 by ThoughtPhreaker

[JmanA9 13]

I think the person I'm trying to reach is in The Twilight Zone. Do you think the "high tech" sounds might be someone dialing #231?

The "high tech" sounds can be implemented in other applications in which the caller's immediate attention is required. For example:

high_tech_sounds.mp3

Edited April 5, 2011 by JmanA9

[dmine45 21]

To expand a bit on TP's post:

The Baltimore "Edmondson" office is the last 1AESS in Maryland and only one of three remaining 1AESS switches in Verizon territory. The other two are the Richmond "Hull Street" office and the Norfolk "Granby Street" office.

http://www.co-buildings.com/midatl/410/baltimore_edmondson.JPG

http://www.co-buildings.com/midatl/804/richmond_hull_street.jpg

and

http://www.co-buildings.com/midatl/757/norfolk_gs.jpg

The Baltmore and Richmond ones are in very.... err... "dark" sections of town The one in Norfolk is an older housing neighborhood. None of these have any "growth" and in fact probably are decreasing in line usage as many people in these areas are going all celullar or some VoIP (e.g. Comcast cable based phone) connection.

The Baltimore Edmonson office 1A is being replaced with a Nortel/Genband MG-9000 packet REMOTE switch. The location of the host is surprising... it's in ANNAPOLIS - about 30 miles to the south.

I am assuming this will only be temporary until a host packet switch is installed in the Baltimore area.

Thanks for doing the scan TP. I'll have to check it out in detail later.

[pepsibottle1 0]

Believe it or not, I live but a block from the Granby St. station. It is currently a Verizion station but was formerly Bell Atlantic. It is a very nice neighborhood actually, and the building is in good shape on the outside. On the inside, however,the place looks completely empty. I don't know a lot about this kind of stuff but there are a bunch of empty racks where I believe equipment used to be, and I've seen a Cavilier Telephone truck outside of the building about two years ago. I dunno if they are dismantling the station or what, but if you would like, I can easily get some pictures. I'm very close and it would take 5 minutes to walk to and from.

Being new here to this BR, I do have a keen interest in retro phone technology, although I know nothing about it like I said. What are these stations and what do they do? I'm only 16 but I think that kind of stuff is really interesting to look back at and see how far we've progressed upon it

Edited May 15, 2011 by pepsibottle1

[ThoughtPhreaker 173]

heh, wow, have we really turned into a retro phone community? I guess given our topics lately, it does sorta look that way.

Anywho, nice! Some pictures would be great. I've talked with people on a looparound test line on that switch every so often before (757-480-9908 and 9909), and even did a scan of it with a friend earlier. It's been as clicky and 1AESS-y as ever, so I think wherever it is, it's most certainly still working. As for the Cavalier truck, they could have equipment co-located in there.

What the station, as you put it, does, is serve each and every Verizon line in your area. This is still a common model of operation today. The switching equipment - in this case, the 1AESS, is holding the strings from the second the phone is picked up until you set it down. What makes the 1AESS so different from everything else in our network is it's the last central office switch still out there to have a completely analog switching matrix. While the fully digital switches being introduced during the last days of the 1AESS's installation (the last 1AESSes were installed in 1983-ish, the first fully digital switches started to pop up in 1976 or 1977) use pulse code modulation and a switching network made up of semiconductors, the 1AESS represents the last of a network made up of real copper and steel. Everything you hear through a 1AESS comes through some degree of relay.

Here's some pictures of a 1AESS, among some of it's fully digital counterparts; http://www.montagar....ne-switches.htm

As for this 1AESS, storm and I did a scan of one of these ranges last year. Take a look at what we found; http://gonullyoursel...-March-2010.txt

The SASS in particular (storm marked it as a ringback test) stands out. Basically, it's an aftermarket test device, but it can dial out from the 1AESS to any number in the 757 area code.

Edited May 15, 2011 by ThoughtPhreaker

[pepsibottle1 0]

Man, that's pretty cool. I'll definitly see if I can get you some pictures this week of the inside.

Edited May 15, 2011 by pepsibottle1

[dmine45 21]

Man, that's pretty cool. I'll definitly see if I can get you some pictures this week of the inside.

I'd like to see them as well. I visited the building about four years ago and took a picture of it. I did notice that it had windows you could see inside, but wasn't able to see very much.

I haven't heard when Verizon plans on changing this out to another switch (probably some packet remote, like they're doing in Baltimore) but it will probably be sooner than later.

So if you're able to get some pictures on the inside, that would be appreciated!

[dmine45 21]

Updated list of 1AESS switches as of July 20, 2011

(Includes information on soon to be replaced switches)

(Source: Mark Cuccia)

1AESS Summary, 52 known to be in operation for end-of-July-2011

===============================================================

03 for VeriZon/Bell-Atlantic/C&P

--------------------------------

Baltimore MD "Edmondson Avenue" ***TO BE REMOVED/REPLACED in 4Q/2011***

Richmond VA "Hull Street"

Norfolk VA "Granby Street"

-------------------------------------------------------------------------------------------

02 for at&t/SBC/Ameritech/Michigan-Bell

---------------------------------------

Pontiac MI "West" (NPA 248) (suburb of Detroit MI) ***TO BE REMOVED/REPLACED in 4Q/2011***

Lansing MI "South" (NPA 517)

02 for at&t/SBC/Ameritech/Illinois-Bell

---------------------------------------

BOTH in the Chicago IL Metro area

Chicago IL "AUStin" (NPA 773)

Oak Park IL (NPA 708) ***TO BE REMOVED/REPLACED in 1Q/2012***

18 for at&t/BellSouth/Southern-Bell

-----------------------------------

(08) Atlanta/northern GA Metro Area (LaGrange GA "Main" has a co-located digital)

(04) others in Georgia:

Savannah GA (NPA 912) "Derenne Avenue"

Waycross GA (NPA 912)

Augusta GA (NPA 706) "Fleming"

Warner-Robbins GA (NPA 478)

(02) Jacksonville FL Metro Area -- "Jacksonville Beach" and "Riverside"

(04) Miami/southeastern FL Metro Area (Miami FL "Metro" has a co-located digital)

07 for at&t/BellSouth/South-Central-Bell

----------------------------------------

(01) Nashville TN "Inglewood"

(02) Birmingham AL Metro Area

***"Ensley" to be removed/replaced in 2Q/2012***

(02) Shreveport LA "Highland" and "Queensboro"

(02) Lafayette LA (Lafayette LA "Main" has a co-located digital) also "Vermillion"

20 for at&t/Southwestern-Bell

-----------------------------

(07) St.Louis MO Metro Area (St.Louis MO 05 "JEfferson" has a co-located digital)

(03) Dallas TX Metro Area

(04) Fort Worth TX Metro Area

***"ATlas" to be removed/replaced in 1Q/2012***

(03) Houston TX Metro Area

***"Aldine" has a co-located digital-now-packet-remote which is to ABSORB the 1A in 1Q/2012***

(03) others in Texas:

Beaumont TX (NPA 409) (Beaumont TX "TErminal" has co-located digitals)

Odessa TX (NPA 432) "Lincoln"

El Paso TX (NPA 915) "Northeast"

================================================================================================

[ThoughtPhreaker 173]

Seeing this makes me wonder what'll happen when there's only one 1AESS left for a certain operating company. Will they keep it there until the FCC intervenes for regulatory reasons? As some of you probably know, GTE kept a step in service until 1998 to justify charging for touchtones.

Then again, we're living in a very different climate right now. Most incumbent telcos have finally realized that competitive carriers - along with wireless are a considerable threat, and have started to make their pricing a lot more competitive.

Anywho, we should scan some of these 1AESS offices while they're still around. Finding an extender on one in particular would be really awesome. Anybody have any thoughts on where we should start?

Edited July 23, 2011 by ThoughtPhreaker

[ramsaso 7]

Can anyone provide information about the remaining 1A/ESSes still active in the PSTN?

[j4rky 1]

Check this out ,unless telcodata and localcallingguide has outdated information

 

http://www.localcallingguide.com/lca_prefix.php?switch=NSVLTNINCG0

https://www.telcodata.us/search-area-code-exchange-by-lata?lata=470

 

NSVLTNINCG0 NASHVILLE INGLEWOOD in TN is apparently still a 1ae

 

Sorry NSVLTNINCG0 was listed....But in 2011..Im shot..

 

615-650-0000

615-650-0001 <--- stays on the line for 3 minutes

615-650-9999

615-650-0099

 

 

 

I'm thinking (theory) all numbers of the same error type on the switch get pooled in one or a few "conferences" (most likely with voice filtering) with the AIS playing the particular appropriate error on repeat forever and any call (whether it is ringing or erroneous) disconnects at 3 minutes on that switch if it isn't supervised...am I right in assuming this is the reason these error numbers stay on the line for so long? If not what's the reason?

 

EDIT**: *6716156500230 rang out for me and gave me a re-order at 3:00 into the call!

All of this being opposed to a 212 switch where error messages will give reorders after 2 repetitions, and ring out takes 2 minutes.

 

In any case the scratchy ancient sounding recordings, and the fact that the call does not disconnect until the 3 minute mark for every number I've tried in 615-650 confirms telcodata's,etc. data I would think.

 

Somebody get some recordings if they can, I will try to as well when I get some downtime.

 

NSVLTNINCG0

• Switch name: NASHVILLE INGLEWOOD
• Switch type: 1AE

Edited January 12, 2015 by j4rky

[ThoughtPhreaker 173]

Sounds like a 1A to me . Hear that loud click as it cuts through to AIS?

[j4rky 1]

from searching "1aess" inurl:"telcodata.us" on google:

 

 

https://www.telcodata.us/view-switch-detail-by-clli?clli=DTRTMIHGCG0

DTRTMIHGCG0 In Detroit

DTRTMILXCG0

DTRTMITECG0

DTRTMITWCG0

DTRTMIUVCG0

DTRTMIVTCG0

FTWOTXJECG0 in Forth Worth Texas

   

OKCYOKWICG0 in Oklahoma city

 

 

from searching "1ess" inurl:"telcodata.us" on google:

ABLNTXORCG0 WECO 1ESS Hi Lo in Orchard Texas (https://www.telcodata.us/view-switch-detail-by-clli?clli=ABLNTXORCG0)

 

 

No idea if any of this info is up to date, depends on telcodata,which is usually pretty good (I think..).

Edited January 12, 2015 by j4rky

[ramsaso 7]

You forgot another 1A/ESS in Texas and that is the one in Odessa, Texas.

 

I've never seen anyone be proactive in hunting down telco data. Keep it up.

 

Also, some of the CLLI correspond to the City and State of where the exchange is.

 

ABLNTX= Abilene, Texas

Edited January 12, 2015 by ramsaso

[j4rky 1]

You forgot another 1A/ESS in Texas and that is the one in Odessa, Texas.

 

I've never seen anyone be proactive in hunting down telco data. Keep it up.

 

Also, some of the CLLI correspond to the City and State of where the exchange is.

 

ABLNTX= Abilene, Texas

 

Yeah

DTRTMI = Detroit Michigan

OKCYOK = OKC, OK

 

It's taking up alot of time discovering stuff on the phone network but it's alot of fun and I want to experience these things before they're gone forever.

 

Believe it or not, I get alot of interesting numbers using quotes and the inurl parameter on google, it's amazingly powerful.

 

Edit**: Killed rant..

 

 

**Edit:

 

What does the CG0 as opposed to DS0 (Digital Signal 0) stand for? 0 is for 64k lines, at least DS0, That much I think I know, what about CG?

Edited January 13, 2015 by j4rky