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Area Code 281 / 346 / 832
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 281 (346 and 832 overlays) (Suburban Houston, Texas).

Click on the pictures below for a larger version.


Apollo

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXAPDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 212, 218, 226, 244, 280, 282-4, 286, 461, 480, 483, 486, 488, 792, 853, 990

Notes:
Source: GSV

 

Arcola

Listing Updated:
March 2016

Operating Company:
Frontier/Verizon/GTE

CLLI:
ARCLTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 431

Notes:
Source: GSV

 

Bammel

"Main"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXBADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 315, 397, 440, 444, 537, 580, 583, 586-7, 631, 805, 866, 880, 891, 893, 895
(832) 249, 375, 484, 836

Notes:
Source: GSV

 

Bammel

"Greenspoint"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXGPDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 408, 423, 514, 518, 539, 618, 730, 765, 774-5, 871-7, 919, 926-7
(832) 348, 513, 601

Notes:
Source: GSV

 

Barker

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXBRDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 398, 492, 578, 579, 599, 616, 646-7, 675, 829
(832) 227, 587, 809

Notes:
Source: GSV

 

Baytown

"XA (Main)"

Listing Updated:
May 2016

Operating Company:
Frontier/Verizon/GTE

CLLI:
BYTWTXXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
(281) 420, 422, 425, 427-8, 834, 837
(832) 556, 926

Notes:
Source: GSV

 

Baytown

"XB"

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
BYTWTXXBRL0

Switch Type:
Ribbon/Genband/Nortel DMS-100 RLM

Prefixes Served:
(281) 707-8

Notes:
Source: GSV

 

Brookshire

Photo 2

Listing Updated:
November 2021

Operating Company:
Consolidated Communications/Fort Bend Telephone Company

CLLI:
BKSHTXXARS0

Switch Type:
Nippon NEAX-61

Prefixes Served:
(281) 375, 934

Notes:
Photo 2 source: Larry P. (December 2013). Current photo source: GSV

 

Channelview

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXCHRS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(281) 452, 457, 860, 862, 864

Notes:
Source: GSV

 

Cleveland

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
CLEVTXCLDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 432, 592-3, 622, 659

Notes:
Source: GSV

 

Crosby

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CRSBTXXADS1

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 328, 462

Notes:
Source: GSV

 

Cypress

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
CYPRTXCYDS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 213, 256, 304, 373, 758
(832) 773

Notes:
Source: GSV

 

Deer Park

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXDPDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 476, 478-9, 542, 884, 930

Notes:
Source: GSV

 

Dickinson

Listing Updated:
June 2013

Operating Company:
Frontier/Verizon/GTE

CLLI:
DCSNTXXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
(281) 309, 337, 534
(832) 226, 505

Notes:
Source: GSV

 

Friendswood

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXFRDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 482, 648, 992-3, 996

Notes:
Source: GSV

 

Highlands

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
HGLNTXXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(281) 426, 843

Notes:
Source: GSV

 

Houston Suburban

"Airline"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXAIDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 260, 272, 405, 445, 447-8, 591, 760, 820, 847, 878, 931, 978, 999

Notes:
Source: GSV

 

Houston Suburban

"Aldine"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXADRP0

Switch Type:
Remote Packet End Office (unknown type)

Prefixes Served:
(281) 219, 227, 372, 443, 449, 590, 594, 985-7

Notes:
Source: GSV

 

Houston Suburban

"Alief"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXALDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 495, 498, 530, 561, 564, 568, 575, 776, 879, 933, 983, 988
(713) 531
(832) 328, 351

Notes:
Source: GSV

 

Houston Suburban

"Blue Ridge West"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXBWDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 416, 437-8, 810, 835

Notes:
Source: GSV

 

Houston Suburban

"Buffalo"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXBUDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 258, 293, 368, 493, 496-7, 509, 529, 531, 544, 552, 556, 558, 560, 584, 588-9, 596-7, 649, 679, 721, 749, 752, 754, 759, 870, 899, 920, 966
(346) 207
(713) 510
(832) 379, 486

Notes:
Source: GSV

 

Houston Suburban

"East Ellington"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXEERS0

Switch Type:
Ribbon/Genband/Nortel DMS-100 RLM

Prefixes Served:
(281) 487, 991, 998

Notes:
Source: GSV

 

Houston Suburban

"East Houston"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXEHDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 436, 454, 458-9

Notes:
Source: GSV

 

Houston Suburban

"Pearland"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXPEDS1

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 412, 485, 997
(832) 736

Notes:
Source: GSV

 

Houston Suburban

"West Ellington"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXWLRP0

Switch Type:
Remote Packet End Office (unknown type)

Prefixes Served:
(281) 464, 481, 484, 922, 929

Notes:
Source: GSV

 

Huffman

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
HFMNTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 324

Notes:
Source: GSV

 

Humble

"XA"

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
HMBLTXXAPS0

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(281) 319, 446, 540, 548, 641, 964
(346) 323

Notes:
Source: GSV

 

Humble

"XC"

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
HMBLTXXCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(281) 441

Notes:
Source: GSV

 

Humble

"Atascocita"

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
ATASTXXARP0

Switch Type:
Remote Packet End Office (unknown type)

Prefixes Served:
(281) 812, 852
(832) 445

Notes:
Source: GSV

 

Humble

"Kingwood XA"

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
KGWDTXXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 312, 348, 358-9

Notes:
Source: GSV

 

Humble

"Kingwood XC"

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
KGWDTXXCRP0

Switch Type:
Remote Packet End Office (unknown type)

Prefixes Served:
(281) 360-1, 913

Notes:
Source: GSV

 

Katy

"XA"

Photo 2

Listing Updated:
November 2021

Operating Company:
Consolidated Communications/Fort Bend Telephone Company

CLLI:
KATYTXXADS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 234, 237, 371, 391, 394, 396, 574

Notes:
Photo 2 source: Larry P. (December 2013). Current photo source: GSV

 

Katy

"XB"

Photo 2

Listing Updated:
November 2021

Operating Company:
Consolidated Communications/Fort Bend Telephone Company

CLLI:
KATYTXXBRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(281) 347

Notes:
Photo 2 source: Larry P. (December 2013). Current photo source: GSV

 

Katy

"XC"

Listing Updated:
November 2021

Operating Company:
Consolidated Communications/Fort Bend Telephone Company

CLLI:
KATYTXXCRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(281) 392, 395, 644, 693

Notes:
Source: GSV

 

Kemah

"Main"

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
KEMHTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 334, 535, 538

Notes:
Source: GSV

 

Kemah

"Bacliff"

Listing Updated:
May 2016

Operating Company:
Frontier/Verizon/GTE

CLLI:
BCLFTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 339, 559

Notes:
Source: GSV

 

Kemah

"Nassau Bay"

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
NSBYTXXADS1

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 333, 335-6

Notes:
Source: GSV

 

La Porte

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXLPDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 470-1, 842, 867

Notes:
Source: GSV

 

Langham Creek

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXLADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 345, 463, 550, 656, 855-6, 858-9, 861
(832) 593

Notes:
Source: GSV

 

League City

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
LGCYTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 316, 332, 338, 554, 557, 672

Notes:
Source: GSV

 

Mont Belvieu

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MTBLTXXADS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(281) 385, 576
(832) 501

Notes:
Source: GSV

 

Pinehurst

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
PNHRTXPNDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 252, 259, 356
(832) 934

Notes:
Source: GSV

 

Porter

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
PTERTXXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(281) 354, 577, 747

Notes:
Source: GSV

 

Porter Heights

Listing Updated:
November 2021

Operating Company:
CenturyLink/Sprint/Centel

CLLI:
PTHSTXXARS0

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(281) 429, 572

Notes:
Source: GSV

 

Richmond-Rosenberg

"Rosenburg"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
RSBGTXRRDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 232, 238-9, 341-2, 344, 633, 725
(832) 223, 471, 595

Notes:
Source: GSV

 

Rosharon

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
RSHRTXXARS0

Switch Type:
Nokia/Lucent/Automatic Electric GTD-5 EAX Remote

Prefixes Served:
(281) 369, 595

Notes:
Source: GSV

 

Satsuma

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXSADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 469, 477, 517, 807, 890, 894, 897, 955, 970
(832) 237, 688, 912

Notes:
Source: GSV

 

Seabrook

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXSERS1

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(281) 291, 974, 909

Notes:
Source: GSV

 

Sheldon

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXSHRS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(281) 456

Notes:
Source: GSV

 

Smithers Lake

"El Campo"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
SMLKTXSMDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(281) 343, 545, 937

Notes:
Source: GSV

 

Spring

"North"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
SPRNTXNODS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 292, 296-8, 362-4, 367, 419, 465, 681, 719, 863, 882, 939
(346) 305
(713) 389, 897
(832) 246, 585, 636, 663, 813

Notes:
Source: GSV

 

Spring

"South"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
SPRNTXSODS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 288, 323, 350, 353, 355, 528, 651, 825, 907

Notes:
Source: GSV

 

Stafford

Listing Updated:
November 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
STFRTXXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 208, 361, 403, 499, 790

Notes:
Source: GSV

 

Sugar Land

"XE"

Listing Updated:
November 2021

Operating Company:
Windstream/Sugar Land Telephone Company

CLLI:
SGLDTXXEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 240, 242-3, 262-4, 269, 273-9, 285, 287, 289, 294-5, 314, 321-2, 325, 327, 329, 340, 490-1, 494, 563, 565-6, 632, 634, 637
(346) 343

Notes:
Source: GSV

 

Tomball

"Main"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
TBLLTXTBDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 255, 290, 351, 357, 401, 516

Notes:
Source: GSV

 

Tomball

"Klein"

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
TBLLTXKLDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(281) 251, 257, 320, 370, 374, 376, 378-9, 655, 826
(346) 246
(832) 534, 717

Notes:
Source: GSV

 

Valley Lodge

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
VLLDTXVLDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(281) 346, 533

Notes:
Source: GSV

 

Westfield

Listing Updated:
November 2021

Operating Company:
at&t/SBC/Southwestern Bell

CLLI:
HSTNTXWEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(281) 209, 230-1, 233, 443, 742, 784, 821
(713) 879
(832) 957

Notes:
Source: GSV

 

 


Copyright 2021 Telephone Central Office Building Pictures
Page last modified November 15, 2021
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