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Area Codes 713 / 281 / 832
Telephone Central Office Building Pictures

The following are respresntative examples of telephone central office buildings in Area Codes 713, 281 and 832 (Texas).

Click on the pictures below for a larger version.


Houston

"Capital"
 

Listing Updated:
July 2014

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXCADS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(713) 216-7, 220-9, 236-8, 247, 250, 259, 315, 368, 437, 546-7, 588, 632, 755, 837 (832) 239, 393-5, 830

Notes:
Source: GSV

 

Houston

"Clay"
 

Listing Updated:
December 2017

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXCLDS0
HSTNTXCLDS1
HSTNTXCLDS2

Switch Type:
DS0: Alcatel/Lucent 5ESS
DS1: Alcatel/Lucent 5ESS
DS2: Alcatel/Lucent 5ESS

Prefixes Served:
DS0: (281) 228, 604, 727
(713) 207, 209, 230, 265, 277, 287, 289, 307, 309, 319, 321, 336, 356, 359, 371, 388, 393, 420, 422, 428, 445, 507, 609, 656-7, 718, 730, 757, 767, 844, 970
(832) 466, 668, 852

DS1: (713) 210, 276, 286, 308, 372, 374, 379, 381, 405, 427, 483, 495, 615, 646, 650-5, 658-9, 739, 750-4, 756, 758-9, 853, 951, 982
(832) 260, 397, 730, 851

DS2: (713) 488, 497, 537, 571, 890
(832) 366, 584, 854
 

Notes:
 

 

Houston

"Medical Center"
 

Listing Updated:
July 2014

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXMCDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(281) 652, 669, 936
(713) 245, 363, 384, 391, 394, 442, 500, 512, 558, 563, 566, 578, 610, 677, 704, 745, 770, 790-9, 852, 873
(832) 354-5, 398, 822, 824-6, 828

Notes:
Source: Larry P.

 

Houston

"Mowhawk"
 

Listing Updated:
July 2014

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXMODS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(713) 218, 295, 314, 349, 432, 592, 660-9, 838-9 (832) 778

Notes:
Source: Larry P.

 

 


Copyright 2017 Telephone Central Office Building Pictures
Page last modified December 23, 2017
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