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Area Codes 202 & 771
Telephone Central Office Building Pictures

The following are pictures of ALL the telephone central office buildings in Area Codes 202 & 771 (Washington, DC).

Click on the pictures below for a larger version.


Washington Zone 1

"Anacostia"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCACDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(202) 575, 581-4

Notes:
Source: GSV

 

Washington Zone 1

"Benning"

Photo 2

 

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCBNDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 388, 396-9, 627, 788

Notes:
Photo 2: Telebeans in January 2004. Current photo source: GSV

 

Washington Zone 1

"Brookland"

Photo 2

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCBKDS0

Switch Type:
Digital Switch (unknown type)

Prefixes Served:
(202) 269, 281, 526, 529, 635-6, 832, 996

Notes:
Photo 2: Telebeans in January 2004. Current photo source: GSV

 

Washington Zone 1

"Congress Heights"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCCHDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 201, 232, 279, 373, 404, 561-3, 574, 645, 767, 787

Notes:
Source: GSV

 

Washington Zone 1

"Downtown"

Photo 2 | Photo 3

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCDNDS0
WASHDCDNDS1

Switch Type:
DS0: Nokia/Alcatel/Lucent 5ESS
DS1: Ribbon/Genband/Nortel DMS-100

Prefixes Served:
DS0: (202) 220, 233, 272, 278, 347, 376, 383, 393, 395, 432, 434, 442, 504, 508, 585, 624, 626, 628, 637-9, 648, 654, 661-2, 724, 727, 737, 761, 783, 824, 879, 942
DS1: (202) 305, 307, 353, 514, 532, 598, 616

Notes:
Photo 3 source: Telebeans. Current photo source: GSV

 

Washington Zone 1

"Dupont"

Photo 2

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCDPDS2
WASHDCDPDS4

Switch Type:
DS2: Nokia/Alcatel/Lucent 5ESS Host
DS4: Nokia/Alcatel/Lucent 5ESS Host

Prefixes Served:
DS2: (202) 235, 238, 299, 319, 518, 588, 612-3, 671, 673, 806, 865, 884, 956, 986, 991
DS4: (202) 232, 234, 265, 328, 332, 387, 462, 476, 483, 667, 745, 797, 939

Notes:
Photo 2: Telebeans in September 2004. Current photo source: GSV

 

Washington Zone 1

"FBI"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCFIDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(202) 323-4

Notes:
A switch is located somewhere in the FBI headquarters building. Source: GSV

 

Washington Zone 1

"Georgetown"

Photo 2

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCGTDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 229, 295, 298, 313, 333, 337-9, 342, 389, 424, 471, 516, 625, 672, 687, 784, 886, 943-5, 965

Notes:
Photo 2: Telebeans in January 2005. Current photo source: GSV

 

Washington Zone 1

"Georgia"

Photo 2

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCGGDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 291, 356, 538, 541, 545, 576-7, 722-3, 726, 782, 829, 882

Notes:
Photo 2: Telebeans in January 2005. Current photo source: GSV

 

Washington Zone 1

"Lincoln"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCLCDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 317, 534-4, 546-8, 608, 675, 698

Notes:
Source: GSV

 

Washington Zone 1

"Metro"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCMODS0
WASHDCMODS1
WASHDCMODSS

Switch Type:
DS0: Ribbon/Genband/Nortel DMS-100
DS1: Nokia/Alcatel/Lucent 5ESS
DSS: Nokia/Alcatel/Lucent 5ESS Host

Prefixes Served:
DS0: (202) 222, 458, 473, 522, 614
DS1: (202) 216, 218, 227, 275, 289, 310, 312, 326, 336, 343, 346, 348, 350, 354, 357, 371, 377, 408, 414, 435, 477, 512-3, 515, 523, 535, 566, 589, 623, 633, 664, 680, 682, 712, 786, 789, 842-3, 898, 906, 962
DSS: (202) 208, 219, 273, 482, 501-2, 564-5, 693-4

Notes:
Source: GSV

 

Washington Zone 1

"Midtown"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCMTDS0
WASHDCMTDS1
WASHDCMTRS0

Switch Type:
DS0: Nokia/Alcatel/Lucent 5ESS
DS1: Nokia/Alcatel/Lucent 5ESS
RS0: Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
DS0: (202) 261, 263, 296, 303, 331, 334, 392, 416, 452, 456, 466-7, 496, 530, 533, 557, 701, 721, 728, 736, 739, 762, 776, 785, 833, 835, 872, 912, 974
DS1: (202) 223, 242, 254, 293, 327, 419, 429, 457, 463, 597, 632, 634, 647, 653, 659, 663, 676, 689, 775, 778, 822, 828, 857, 861-2, 887, 955, 994
RS0: (202) 418, 606

Notes:
Source: GSV

 

Washington Zone 1

"Southeast"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCSEDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(202) 284, 433, 436, 610, 678, 685, 757, 781, 889

Notes:
Source: GSV

 

Washington Zone 1

"Southwest"

Photo 2 | Photo 3

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCSWDSA
WASHDCSWDSS
WASHDCSW07T
WASHDCSWPS0

Switch Type:
DSA: Ribbon/Genband/Nortel DMS-100
DSS: Nokia/Alcatel/Lucent 5ESS
07T: Ribbon/Genband/Nortel DMS-200
PEO: Packet End Office (unknown type)

Prefixes Served:
DSA: (202) 203, 212, 225-6, 230, 245, 252, 264, 267, 283, 287, 283, 287, 314, 366, 382, 385, 406, 426, 447, 453, 472, 475, 479, 484-5, 488, 493, 554, 586, 593, 622, 646,651, 707, 732, 755, 799, 863, 874, 927
DSS: (202) 205, 260, 358, 401-2, 619, 690-2, 708, 720
07T: (202) 432, 474, 490, 542, 666, 668, 901
PS0: (202) 470

Notes:
The granddaddy HQ of Verizon landline in Washington, DC. Home to a slew of switches of various types (Verizon, CLEC, pager, etc.). Only Verizon ones are shown here. Also home to an AT&T 4ESS. The building is so large that Verizon sells billboard space that can be seen from nearby I-395. This photo was taken from South Capitol Street in southeast DC. Photo 3 - Source: Telebeans

 

Washington Zone 1

"Woodley"

Listing Updated:
April 2021

Operating Company:
Verizon/Bell Atlantic/C&P of DC

CLLI:
WASHDCWLDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Host

Prefixes Served:
(202) 237, 243-4, 282, 362-4, 537, 665, 686, 752, 764, 885, 895, 966

Notes:
Source: GSV

 

 


Copyright 2021 Telephone Central Office Building Pictures
Page last modified April 21, 2021
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