12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOSWDS0

Denver Southwest

Genband/Nortel DMS-100

716, 763, 914, 969, 980, 984-9 (720) 962-3

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOSEDS0

Denver Southeast

Genband/Nortel DMS-100

300, 504, 512, 584, 639, 691-2, 753, 756-9, 782 (720) 242, 524

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOSODS0

Denver South

Genband/Nortel DMS-100

281-2, 698, 715, 722, 733, 744, 765, 777-8, 871 (720) 570

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCONEDS0

Denver Northeast

Genband/Nortel DMS-100

227, 286-9, 853 (720) 322

Source: GSV

08/01/2012

CenturyLink/Qwest/US West/Mountain Bell

DNVRCONODS0

Denver North

Genband/Nortel DMS-100

433, 455, 477, 480, 561, 964 (720) 854-5

Source: Nathan H.

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOMADS0

Denver Main

Nokia/Alcatel/Lucent 5ESS

260, 352, 389, 405, 436, 446, 454, 534, 556, 571-3, 575, 585, 592, 595, 602-3, 605-8, 615, 620, 623-4, 626, 628-31, 633-4, 640, 685, 820, 825, 844, 892-3, 899 (720) 359, 362, 931, 944

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOEADS0

Denver East

Nokia/Alcatel/Lucent 5ESS

(303) 270, 314-6, 320-2, 329, 331, 333, 336, 355, 370, 372, 377, 388, 393-4, 398-9, 780 (720) 941-2, 945

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOCPDS0

Curtis Park

Nokia/Alcatel/Lucent 5ESS

244, 291-9, 308, 312-3, 380, 382-3, 391, 672, 675, 896, 965, 992 (720) 264, 578

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOCLDS0

Columbine

Genband/Nortel DMS-100

904, 932-3, 948, 971-3, 977-9 (720) 922, 981

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

CNCYCOMARS1

Central City

Ericsoon AXE 10 Remote

582

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

CSRKCONMDS0

Castle Rock

Nokia/Alcatel/Lucent 5ESS

660, 663, 688, 814 (720) 455, 733

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

DNVRCOCHDS0

Capitol Hill

Genband/Nortel DMS-100

318, 764, 812-3, 830-2, 837, 839, 860-1, 863-4, 869, 894 (720) 423-4, 426, 917, 947

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

BRFDCOMADS0

Broomfield

Genband/Nortel DMS-100

272, 404, 410, 438-9, 460, 464-6, 469, 533, 635 (720) 558, 566, 887

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

BLDRCOGBRS1

Boulder-Gunbarrel

Nokia/Alcatel/Lucent 5ESS Remote

516, 527, 530, 581 (720) 622

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

BLDRCOMADS0

Boulder Main

Nokia/Alcatel/Lucent 5ESS

245, 247, 401-2, 413, 415, 417, 440-4, 447-9, 473, 492, 541, 544-6, 735, 786, 924, 938-9, 966, 998 (720) 406, 561-5

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

AURRCOMADS0

Aurora

Nokia/Alcatel/Lucent 5ESS

326, 340-1, 343-4, 360-1, 363-7, 676-7, 724, 739, 553, 777, 847-8, 857-9

Source: GSV

12/01/2016

CenturyLink/Qwest/US West/Mountain Bell

ARVDCOMADS0

Arvada

Genband/Nortel DMS-100

403, 420-5, 431-2, 456, 463, 467, 940 (720) 898

Source: GSV

11/01/2011

Bijou Telephone Cooperative

DRTRCOXCRS1

Deer Trail

Genband/Nortel 1RE

769

Source: GSV

04/01/2012

Verizon/Bell Atlantic/Diamond State Telephone

MSTNDEMADS0

Marshallton

Genband/Nortel DMS-100

353, 633-4, 636, 683, 892, 992-6, 998-9

01/01/2013

Verizon/Bell Atlantic/Diamond State Telephone

WLMGDEWLDS0

Main

Genband/Nortel DMS-100

255, 282, 320, 421, 425-9, 432-4, 467, 498, 552, 571, 573-7, 594, 622, 647, 651-2, 654-8, 661, 695, 772-4, 777-8, 784, 830, 884-6, 888, 984-5

12/01/2005

Verizon/Bell Atlantic/Diamond State Telephone

NWRKDENBDS0

Newark

Genband/Nortel DMS-100

266, 283, 286, 292, 366, 368-9, 391, 451-8, 623, 631, 731, 733, 737-8, 831, 837, 894

Source: Telebeans

10/01/2013

Verizon/Bell Atlantic/Diamond State Telephone

NWCSDENCDS0

New Castle

Genband/Nortel DMS-100

322-8, 395

Photo 3 shows the original building to the left of the current central office.

12/01/2005

Verizon/Bell Atlantic/Diamond State Telephone

MDTWDEMTDS1

Middletown

Nokia/Alcatel/Lucent 5ESS

376, 378, 449

Source: Telebeans

09/01/2004

Verizon/Bell Atlantic/Diamond State Telephone

DOVRDEDVDS0

Dover

Genband/Nortel DMS-100

666, 672, 674, 677-8, 730, 734-6, 739, 741, 744, 760, 857

Source: Telebeans

12/01/2005

Verizon/Bell Atlantic/Diamond State Telephone

WRHLDEWHDS0

Wrangle Hill

Genband/Nortel DMS-100

832, 834, 836, 838

Source: Telebeans

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

WLPTMDWPRS2

Williamsport

Nokia/Alcatel/Lucent 5ESS Remote

223, 582

Serves parts of Hagerstown. Source: GSV

07/01/2014

Verizon/Bell Atlantic/C&P Telephone of Maryland

CLTNMDCLDS0

Clinton

Nokia/Alcatel/Lucent 5ESS

(240) 318 (301) 599, 856, 868, 877

Serves parts of Washington Zone 5. Source: GSV

12/01/2005

Verizon/Bell Atlantic/C&P Telephone of Maryland

MRBOMDMBDS0

Upper Marlboro (Marlboro)

Nokia/Alcatel/Lucent 5ESS

(301) 574, 627, 780, 952 + (410) 741

Also serves parts of West River rate center. Source: Telebeans

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

UPMRMDCCDS0

Upper Marlboro Church Road

Nokia/Alcatel/Lucent 5ESS

218, 249, 390, 430

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

BOWIMDBODS0

Bowie

Nokia/Alcatel/Lucent 5ESS

262, 352, 464, 805, 809, 860

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

CLPKMDBWDS0

College Park - Berwyn

Nokia/Alcatel/Lucent 5ESS

(240) 624, 684; (301) 220, 286, 313, 344-5, 397, 441, 446, 474, 486, 488-9, 507, 513, 614-5, 901, 982, 993

Source: GSV

10/01/2017

Verizon/Bell Atlantic/C&P Telephone of Maryland

BTVLMDBVDS0

Beltsville

Nokia/Alcatel/Lucent 5ESS

394, 572, 586, 595. 796, 847, 890, 902, 931, 937

Serves part of Washington Zone 3. Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLSPMDCVDS0

Silver Spring Colesville

Nokia/Alcatel/Lucent 5ESS Host

236, 384, 388, 421, 476, 622, 625, 680, 879, 940, 989

Serves parts of Washington Zone 3 and Ashton. Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

WHTNMDWTDS0

Wheaton

Nokia/Alcatel/Lucent 5ESS

(240) 292 (301) 929, 933, 946, 949, 962

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLSPMDNBDS0

Silver Spring Norbeck

Nokia/Alcatel/Lucent 5ESS

438, 460, 598, 603, 871

Serves parts of Washington Zone 12. Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

RKVLMDMRDS0

Rockville Montrose

Nokia/Alcatel/Lucent 5ESS Host

(240) 221, (301) 230-1, 25, 382, 413, 468, 522, 770, 816, 881, 984, 998

Source: GSV

09/01/2017

Verizon/Bell Atlantic/C&P Telephone of Maryland

RKVLMDRVDS1

Rockville

Genband/Nortel DMS-100

(240) 314, 328, 453, 567, 773, 777, 826 (301) 251, 279, 295, 309, 315, 340, 398, 424, 517, 544-5, 610, 738, 762, 838

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

OXHLMDOHDS0

Oxon Hill

Nokia/Alcatel/Lucent 5ESS

521, 567, 686, 749,839

Source: GSV

01/01/2004

Verizon/Bell Atlantic/C&P Telephone of Maryland

FTWSMDCPDS0

Fort Washington Chapel Hill

Nokia/Alcatel/Lucent 5ESS

203, 292

Source: Telebeans

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

ALTWMDATDS0

Allentown

Nokia/Alcatel/Lucent 5ESS

234, 248, 265, 297, 433, 449

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

TMHLMDTHDS0

Temple Hills

Genband/Nortel DMS-100

(240) 695, (301) 238, 316, 423, 505, 630, 702, 836, 894, 899

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

STLDMDSLDS0

Suitland

Nokia/Alcatel/Lucent 5ESS

420, 516, 568, 669, 735-6, 763, 817, 967

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

CPHGMDCADS0

Capitol Heights

Nokia/Alcatel/Lucent 5ESS

324, 333, 336, 350, 499, 808

Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

LNHMMDLNDS0

Lanham

Nokia/Siemens EWSD

306, 429, 459, 552, 577, 731, 794, 918

Serves parts of Washington Zones 13 & 14. Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

LDVRMDLODS0

Landover

Nokia/Alcatel/Lucent 5ESS

226, 322, 341, 386, 583, 618, 636, 772-3, 883, 925

Serves parts of Washington Zone 5. Source: GSV

01/01/2006

Verizon/Bell Atlantic/C&P Telephone of Maryland

HYVLMDHYDS0

Hyattsville

Genband/Nortel DMS-100

(240) 582 + (301) 209, 239, 277, 403, 436, 454, 532, 699, 779, 851-2, 864, 887, 927, 985

Source: Telebeans

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLSPMDNWDS0

Silver Spring Northwood

Nokia/Alcatel/Lucent 5ESS

592-3, 649, 681, 754, 905

Serves parts of Washington Zone 11. Source: GSV

01/01/2005

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLSPMDSSDS0

Silver Spring

Nokia/Alcatel/Lucent 5ESS-2000

(240) 662 + (301) 285, 427, 495, 562-3, 565, 578, 585, 587-9, 608, 626, 650, 819, 930

Source: Telebeans

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

HYVLMDRIDS0

Hyattsville Riggs Road

Nokia/Alcatel/Lucent 5ESS

408, 422, 431, 434, 439, 445, 701, 923, 935

erves parts of Washington Zones 4 & 13. Source: GSV

05/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

CHCHMDBEDS0

Chevy Chase Bethesda

Nokia/Alcatel/Lucent 5ESS

(240) 497, (301) 215, 280, 347, 492, 652, 654, 656-7, 664, 718, 771, 907, 913, 941, 951, 961, 986

Source: GSV