10/01/2005

Verizon/Bell Atlantic/Bell of Pennsylvania

PYVLPAPEDS0

Perrysville

Nokia/Alcatel/Lucent 5ESS

358, 364, 366-7, 369, 630, 635

Was a #5 crossbar office until the mid 1980s.

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

SWKYPASERS1

Sewickley

Nokia/Alcatel/Lucent 5ESS Remote

741, 749

Source: GSV

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

CARNPACADS0

Carnegie

Nokia/Alcatel/Lucent 5ESS

276, 278-9, 429, 923

Source: GSV

08/01/2009

Verizon/Bell Atlantic/Bell of Pennsylvania

BGVLPABRDS0

Bridgeville

Nokia/Alcatel/Lucent 5ESS

220, 221, 257, 914

Was a #5 crossbar office until the mid 1980s.

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

WMFLPAWMDS0

West Mifflin

Nokia/Alcatel/Lucent 5ESS

460, 466, 469

Source: GSV

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

MCPTPAMKDS0

McKeesport

Nokia/Alcatel/Lucent 5ESS

664, 672-3, 675, 678

Source: GSV

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

ELZTPAETDS0

Elizabeth Township

Nokia/Alcatel/Lucent 5ESS

751, 754

Source: GSV

08/01/2014

Verizon/Bell Atlantic/Bell of Pennsylvania

ELZBPAELRS0

Elizabeth

Nokia/Alcatel/Lucent 5ESS Remote

382, 384

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

WNGTMDWGRS0

Main

Genband/Nortel RLC

397-8xxx

Remote loop carrier for the 8000s block of the 397 prefix. Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

HONGMDHGRS0

Honga

Genband/Nortel RSC

397-2xxx, 3-xxxx

Remote switching center serving the 2000s and 3000s block of the 397 prefix.  Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

WLRDMDWRRS1

Willards

Genband/Nortel RSC

835

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

WMNSMDWMDS0

Westminster

Nokia/Alcatel/Lucent 5ESS Host

386, 840, 848, 857, 871, 875-6

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

GLVLMDGLRS1

Galesville

Nokia/Alcatel/Lucent 5ESS Remote

(301) 889 (410) 867

Serves parts of Washington Zone 14. Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

UNBRMDUBRS0

Union Bridge

Nokia/Alcatel/Lucent 5ESS Remote

775

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

TRPPMDTRRS0

Trappe

Nokia/Alcatel/Lucent 5ESS Remote

476

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

TWSNMDTWDS0

Towson

Nokia/Alcatel/Lucent 5ESS

249, 296, 307, 321, 324, 337, 339, 494, 512, 583, 716, 769, 816, 821, 823, 825, 828, 830, 832, 847, 851, 853, 887, 938 (443) 652, 849

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

TLGHMDTLRS0

Tilghman

Nokia/Alcatel/Lucent 5ESS Remote

886

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

STVLMDSTRS1

Stevensville

Nokia/Alcatel/Lucent 5ESS Remote

604

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

NRPNMDNPDS0

North Point

Nokia/Alcatel/Lucent 5ESS

388, 477

Source: GSV

04/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLMNMDSLRS1

Solomons

Nokia/Alcatel/Lucent 5ESS EXM

326, 394

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

SNHLMDSHRS0

Snow Hill

Genband/Nortel RSC

632

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

SLBRMDSBDS1

Salisbury

Genband/Nortel DMS-100

219, 334, 341, 543, 546, 548, 572, 677, 742, 749, 860 (443) 260, 523

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

RKHLMDRHRS0

Rock Hall

Genband/Nortel RSC

639

Source: GSV

06/01/2010

Armstrong Telephone Company

RSSNMDXRDS0

Rising Sun

Nokia/Siemens DCO

658

The only independent telephone company in Maryland

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

RSTWMDRSDS0

Glyndon

Genband/Nortel DMS-100

429, 517, 526, 833, 861

Source: GSV

06/01/2005

Verizon/Bell Atlantic/C&P Telephone of Maryland

RNTWMDRADS0

Randallstown

Nokia/Alcatel/Lucent 5ESS

496, 521, 655, 922

Source: Telebeans

11/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

QNTWMDQNRS0

Queenstown

Nokia/Alcatel/Lucent 5ESS Remote

827

Source: Parris Wood/TCO

04/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

MUTLMDMTRS0

Mutual

Nokia/Alcatel/Lucent 5ESS EXM

495, 586

04/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

PRFRMDPFRS1

Main

Nokia/Alcatel/Lucent 5ESS EXM

414, 535

Also serves part of Washington Zone 15 in Area Code 301.

02/01/2005

Verizon/Bell Atlantic/C&P Telephone of Maryland

BNBRMDBRRS0

Bainbridge

Nokia/Alcatel/Lucent 5ESS Remote

378, 642

Serves Port Deposit and parts of Perryville rate centers. Source: Telebeans

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

OWMLMDOMDS0

Owings Mills

Genband/Nortel DMS-100

345, 356, 363, 504, 577, 581, 654, 902, 998 (443) 213, 394

Source: GSV

06/01/2005

Verizon/Bell Atlantic/C&P Telephone of Maryland

PIVLMDPKDS1

Main

Genband/Nortel DMS-100

(410) 205, 318, 358, 415, 484, 486, 580, 585, 602, 653, 764 + (443) 357

Also serves parts of Baltimore rate center. Source: Telebeans

06/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

WHMRMDWMRS2

White Marsh

Nokia/Alcatel/Lucent 5ESS EXM

931, 933, 678

This Verizon building is in an office park that has several Comcast buildings.

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

PRHLMDPHDS0

Perry Hall

Nokia/Alcatel/Lucent 5ESS Host

248, 256, 529

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

PKVLMDPKDS0

Main

Genband/Nortel DMS-100

661, 663, 665, 668, 882

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

PKTNMDPKRS0

Parkton

Nokia/Alcatel/Lucent 5ESS Remote

343, 357

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

OXFRMDOXRS0

Oxford

Nokia/Alcatel/Lucent 5ESS Remote

226

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

ODTNMDPORS2

Piney Orchard

Nokia/Alcatel/Lucent 5ESS Remote

695 (443) 274

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

OCCYMDONDS0

North Ocean City

Genband/Nortel DMS-100

520 524, 723

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

OCCYMDOCRS0

Main

Genband/Nortel RSC

289

Source: GSV

07/01/2004

Verizon/Bell Atlantic/C&P Telephone of Maryland

NRTEMDNERS0

North East

Nokia/Alcatel/Lucent 5ESS Remote

(410) 287+ (443) 967

Source: Telebeans

04/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

NRBHMDNEDS0

North Beach

Nokia/Alcatel/Lucent 5ESS Host

257, 286

Also serves part of Washington Zone 15 in Area Code 301.

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

NNTCMDNTRS1

Nanticoke

Genband/Nortel RSC

873

Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

DRCRMDDCDS0

Dorrs Corner

Nokia/Alcatel/Lucent 5ESS

514, 729, 923, 987

Serves parts of Severn. Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

MARNMDMARS1

Marion

Genband/Nortel RSC

623

Source: GSV

06/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

JRVLMDJERS0

Jarrettsville

Nokia/Alcatel/Lucent 5ESS ORM

557, 692, 941

Serves parts of Fork. The 941 office code has a greater calling area (two ratecenters in Pennsylvania) than the 692 office code.

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

HLBOMDTKRS0

Tuckahoe

Nokia/Alcatel/Lucent 5ESS Remote

364, 634

Serves parts of Ridgely. Source: GSV

06/01/2010

Verizon/Bell Atlantic/C&P Telephone of Maryland

HDGRMDHVDS0

Havre de Grace

Genband/Nortel DMS-100

939, 942

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

GLBRMDGLDS0

Main

Nokia/Alcatel/Lucent 5ESS

222, 424, 508, 553, 582, 590, 760-2, 766, 768, 787, 826, 863, 969 (443) 572

Serves parts of Severn. Source: GSV

07/01/2011

Verizon/Bell Atlantic/C&P Telephone of Maryland

FPATMDFRDS0

Friendship-Accident

Genband/Nortel DMS-100

684, 691, 694, 765, 850, 855, 859, 865, 892, 981, 993

Source: GSV