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Area Code 978 & 351
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 978 and 351 (Massachusetts)

Click on the pictures below for a larger version.


 

Acton


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
ACTNMAMADS1

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 263-4, 266, 493, 506, 635, 929, 936

Notes:
Also serves the Maynard and Littleton ratecenters. Source: GSV

 

 

Amesbury


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
AMSBMAPLRS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 388, 834

Notes:
Source: GSV

 

 

Andover


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
ANDVMAELDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 247, 470, 474-5, 623, 684, 749

Notes:
Source: GSV

 

 

Ashby


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
ASHBMASODS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 386

Notes:
Source: GSV

 

 

Athol


 

Listing Updated:
April 2015

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
ATHOMARIDS1

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 248-9, 575

Notes:
Source: Jordan D. in MA

 

 

Ayer


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
AYERMAPLDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 772, 784, 796

Notes:
Source: GSV

 

 

Barre


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
BARRMAJARS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 355

Notes:
Source: GSV

 

 

Berlin


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
BRLNMAHIRS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 838

Notes:
Source: GSV

 

 

Beverly


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
BVRLMAELDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 232, 236, 524, 787, 921-2, 927

Notes:
Source: GSV

 

 

Billerica


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
BLRCMAANRP0

Switch Type:
Remote Packet Office (unknown type)

Prefixes Served:
(978) 262, 294, 436-7, 439, 488, 545, 547, 622, 625, 629, 663, 667, 670-1

Notes:
Source: GSV

 

 

Bolton


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
BOTNMAMARS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 779

Notes:
Source: GSV

 

 

Clinton


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
CLTNMACHRS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 365, 368

Notes:
Source: GSV

 

 

Concord

Carlisle Remote: Photo 1 | Photo 2

Photo 3Photo 4


 

Listing Updated:
November 2016 / October 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
CNCRMAWADS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 245, 280, 287, 316, 318, 341, 369, 371, 472, 576, 585, 591, 638, 680, 718, 734, 803, 859, 963

Notes:
The Carlisle remote (CRLSMAWE) is not listed in official documentation as a stand alone remote. Source: GSV

 

 

Danvers

Photo 2 (Middleton)


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
DNVSMAHIDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 646, 739, 750, 762, 774, 777

Notes:
Photo 2 is "Danvers-Middleton" which does not have a CLLI code of its own. Source: GSV

 

 

Fitchburg


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
FTBGMAMADS1

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 340, 342-3, 345, 348, 353, 665

Notes:
Source: GSV

 

 

Gardner


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
GRNRMAWEDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 630, 632

Notes:
Source: GSV

 

 

Gloucester


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
GLCSMAELDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 281-3, 675

Notes:
Source: GSV

 

 

Groton

"Hollis"

Photo 2


 

Listing Updated:
August 2013

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
GRTNMAHODS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 448-9

Notes:
Source: Roberto C. in MA.

 

 

Hamilton


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
HMTNMAWIRS2

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 468

Notes:
Source: GSV

 

 

Harvard


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
HRVRMALIDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 456

Notes:
Source: GSV

 

 

Haverhill


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
HVHLMAWIDS1

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 372-4, 469, 521, 556

Notes:
Source: GSV

 

 

Hubbardston


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
HBTNMAMARS1

Switch Type:
Genband/Nortel RSC

Prefixes Served:
(978) 928

Notes:
Source: GSV

 

 

Hudson


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
HDSNMAFRDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 562, 567-8

Notes:
Source: GSV

 

 

Ipswich


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
IPSWMACORS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 356, 412

Notes:
Source: GSV

 

 

Lawrence


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
LWRNMACADS2

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 242, 292, 329, 557, 659, 676, 681-3, 685-9, 691, 725, 738, 794, 837, 946, 974-5, 989

Notes:
Source: GSV

 

 

Leominster


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
LMNSMASCDS1

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 466, 514, 534, 537, 840

Notes:
Source: GSV

 

 

Littleton


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
LTTNMAKIRS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 486, 742, 952

Notes:
Source: GSV

 

 

Lowell

"Main"


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
LWLLMAAPPSA

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(978) 275, 322-3, 441-2, 446, 452-4, 458-9, 656, 788, 934, 937, 970

Notes:
Source: GSV

 

 

Lowell

"Chelmsford"


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
CHFRMANORP0

Switch Type:
Remote Packet Office (unknown type)

Prefixes Served:
(978) 244, 250, 256, 367, 497, 967

Notes:
Source: GSV

 

 

Lowell

"Dracut"


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
DRCTMAMMDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 674, 957

Notes:
Source: GSV

 

 

Lowell

"North Chelmsford"


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
NCHLMAGRRP0

Switch Type:
Remote Packet Office (unknown type)

Prefixes Served:
(978) 251

Notes:
Source: GSV

 

 

Lowell

"Tewksbury"


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
TWBYMARODS1

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 640, 851, 858, 863

Notes:
Source: GSV

 

 

Lunenburg


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
LNBGMASCDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 582

Notes:
Source: GSV

 

 

Maynard

Photo 2 | Photo 3


 

Listing Updated:
August 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
MYNRMAWARS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 461, 823, 897

Notes:
Photo 3 is the inside lobby. Source: Jay Copson

 

 

Newburyport


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
NBPTMAGRDS1

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 462-3, 465, 499

Notes:
Source: GSV

 

 

North Reading


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
NRDGMACERS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 276, 370, 664

Notes:
Source: GSV

 

 

Orange


 

Listing Updated:
April 2015

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
ORNGMASMDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(413) 422
(978) 544

Notes:
Also serves parts of Millers Falls (in 413). Source: Jordan D. in MA

 

 

Peabody

"Central (Main)"


 

Listing Updated:
April 2014

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
PBDYMACEDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 531-2, 538, 573, 977

Notes:
Source: GSV

 

 

Peabody

"West Peabody"


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
WPBDMAPIDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(978) 535-6

Notes:
Source: GSV

 

 

Petersham


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
PTRSMAEARS1

Switch Type:
Genband/Nortel RSC

Prefixes Served:
(978) 724

Notes:
Source: GSV

 

 

Princeton


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
PRTNMABORS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 464

Notes:
Source: GSV

 

 

Rockport


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
RCPTMAMARS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 546

Notes:
Source: GSV

 

 

Salem


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
SALMMANODS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 354, 542, 740-1, 744-5, 825

Notes:
Source: GSV

 

 

Sterling


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
STNGMABRRS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 422

Notes:
Source: GSV

 

 

Sudbury


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
SDBRMABPDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 209, 307, 366, 440, 443, 445, 507, 579

Notes:
Source: GSV

 

 

Templeton


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
TMTNMAMERS1

Switch Type:
Genband/Nortel RSC

Prefixes Served:
(978) 939

Notes:
Source: GSV

 

 

Tyngsboro


 

Listing Updated:
July 2017

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
TYNGMAKEDS0

Switch Type:
Genband/Nortel DMS-10

Prefixes Served:
(978) 649

Notes:
Source: GSV

 

 

West Newbury


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
WNWBMAMARS1

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(978) 363

Notes:
Source: GSV

 

 

Westford


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
WSFRMADERP0

Switch Type:
Remote Packet Office (unknown type)

Prefixes Served:
(978) 392, 399, 589, 692

Notes:
Source: GSV

 

 

Westminster


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
WMNSMAELRS1

Switch Type:
Genband/Nortel RSC

Prefixes Served:
(978) 731, 874

Notes:
Source: GSV

 

 

Wilmington


 

Listing Updated:
November 2016

Operating Company:
Verizon/Bell Atlantic/NYNEX/New England Telephone

CLLI:
WLMGMAMADS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(978) 205, 214, 284, 444, 657-8, 661, 694, 736, 789, 924, 988

Notes:
Source: GSV

 

 


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Page last modified October 14, 2017
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