In early February 2009, I had posted information on a cutover from
a 1AESS to a 5ESS in at&t/BellSouth territory of Delray FL, to take
effect later in the year (this year, 2009). I hadn't noticed that
at&t/SWBell had also posted a public network/technical notice in
July 2008, regarding a similar cutover of a 1AESS to a 5ESS, in the
St.Louis MO area:
"at&t Southwest", formerly SBC, formerly Southwestern Bell,
has an announcement on their "interconnections/technical
disclosures" webpages, that the St.Louis MO "Bridgeton" central
office will changeover from an Alcatel-Lucent 1AESS to an
Alcatel-Lucent 5ESS-DRM (Distinctive Remote Module) on Saturday
15-November-2008 (I assume in the early morning hours).
This already has happened -- I only discovered the previously
indicated documentation, today!
This document is NOT restricted, and can be found from at&t's
The actual MS-Word .doc file, originally dated Thursday 24-July-2008,
revised on Saturday 15-November-2008, is at:
STLSMO42CG0 Alcatel-Lucent 1AESS
SS7 Point Code 249-146-001
STLSMO42DS1 Alcatel-Lucent 5ESS-DRM (Digital Remote Module)
SS7 Point COde 249-146-106
The homing LATA-tandem for the 5ESS-DRM will remain the same, STLSMO2101T, a 5ESS, St.Louis (Creve Coeur) MO "Ladue".
The pair of both STP's (Signal Transfer Points) will remain the same:
serving both the old 1AESS and the new 5ESS.
There are eight NPA-NXX c.o.codes served, which migrated from the old
1AESS (-CG0), over to the new 5ESS (-DS1):
314-209, 314-291, 314-298, 314-344,
314-702, 314-738, 314-739, 314-770
The ratecenter for all of these 314-NXXes is actually "Ladue MO".
AT ONE TIME, co-located at this St.Louis MO (Ladue MO) "Bridgeton MO"
building were two at&t/SouthWestern-Bell remote switches, but this
apparently no longer exist: STLSMO42RS2, STLSMO42RS3.
There are still approx. 70 (seventy) 1AESS switches throughout the US...
ONLY THREE in VZ/BA/C&P -- one in Maryland, two in Virginia
a small handful in at&t/Ameritech, scattered in Michigan, and only
two in the Chicago IL metro area
Several in at&t/BellSouth territory -- mostly in Georgia and Florida,
one in Tennessee, and a few in Alabama and Louisiana
and several in at&t/S.W.Bell territory -- a handful in Missouri, and
SEVERAL in Texas....
It doesn't seem like there are any others in VZ/NYNEX, nor at&t/SNET-CT,
nor Qwest/US-West (NW-Bell, Mtn-Bell, Pac-NW-Bell), nor Cincinnati Bell,
nor at&t/Pacific*Bell/NV*Bell, nor FairPoint-legacy-VZ/NET&T.
I think that Canada got rid of their similar Nortel SP-x switches,
all replaced with digitals (mostly Nortel-DMS) some years ago, even
though many Canadian CLLIs still are shown with -CG(x) instead of -DS(x)
although there MIGHT still be similar #1EAX or similar, in legacy
GTE-BC-Tel territory (now part of Telus), etc.
I do NOT know offhand if any other independents in the US or elsewhere
(Caribbean, Pacific, etc) still have any (non-digital) #1EAX or similar
Mark J. Cuccia
markjcuccia at yahoo dot com
Lafayette LA, formerly of New Orleans LA pre-Katrina