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: Ribbon/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: Nokia/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: Ribbon/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: Ribbon/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: Ribbon/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: Nokia/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: Nokia/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: Nokia/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: Nokia/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: Nokia/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: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (978) 365, 368 Notes: Source: GSV
Concord Carlisle Remote: Photo 1 | Photo 2 Photo 3 |  Photo 4	Listing Updated: November 2016 / October 2017 Operating Company: Verizon/Bell Atlantic/NYNEX/New England Telephone CLLI: CNCRMAWADS0 Switch Type: Nokia/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: Nokia/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: Ribbon/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: Ribbon/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: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (978) 281-3, 675 Notes: Source: GSV
Groton "Hollis" Photo 2 | Photo 3 | Photo 4 | Photo 5 Photo 6 | Photo 7 | Photo 8	Listing Updated: January 2024 Operating Company: Verizon/Bell Atlantic/NYNEX/New England Telephone CLLI: GRTNMAHORP0 Switch Type: Remote Packet Switch (unknown type) Prefixes Served: (978) 448-9 Notes: This was a DMS-10 until recently, now a remote packet switch. Source: Photos 1-6: Jay C. (January 2024) Photos 7-8: Source: Roberto C. (August 2013)
Hamilton	Listing Updated: November 2016 Operating Company: Verizon/Bell Atlantic/NYNEX/New England Telephone CLLI: HMTNMAWIRS2 Switch Type: Nokia/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: Ribbon/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: Nokia/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: Ribbon/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: Nokia/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: Nokia/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: Nokia/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: Ribbon/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: Nokia/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: Ribbon/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: Ribbon/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: Ribbon/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: Nokia/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: Nokia/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: Nokia/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: Ribbon/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: Ribbon/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: Nokia/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: Ribbon/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: Nokia/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: Nokia/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: Ribbon/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: Nokia/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: Ribbon/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: Ribbon/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: Ribbon/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: Nokia/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: Ribbon/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: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (978) 205, 214, 284, 444, 657-8, 661, 694, 736, 789, 924, 988 Notes: Source: GSV

Visit other Massachusetts Area Codes: 413 508 617 781 978

Visit nearby regions: Connecticut New Hampshire New York Rhode Island Vermont