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Area Code 518
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 518 (Capital Region of New York state).

Click on the pictures below for a larger version.


Albany

"State Street" (Main)

Photo 2 | Photo 3 | Photo 4

Listing Updated:
October 2023

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

CLLI:
ALBYNYSSDS0
ALBYNYSSDS1
ALBYNYSSDS3

Switch Type:
DS0: Nokia/Alcatel/Lucent 5ESS
DS1: Ribbon/Genband/Nortel DMS-100/200
DS3: Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
DS0: (518) 487
DS1: (518) 367
DS3: (518) 257, 262, 391, 396, 408, 426-7, 431-4, 436, 443, 445, 447, 449, 465, 470-2, 476, 486, 488, 598, 626, 890

Notes:
Current photo: GSV. Photos 2-4: September 2012. Note the AT&T Long Lines building next door to the Verizon central office (See below).

 

Albany

"State Street"

(AT&T Long Lines)

Photo 2 | Photo 3 | Photo 4

Listing Updated:
October 2023

Operating Company:
AT&T (Long Lines)

CLLI:
(was ALBYNYSS05T)

Switch Type:
(was WECO 4ESS)

Prefixes Served:
(Various CLEC prefixes)

Notes:
This building once housed the long haul 4ESS tandem (NSN 003-T) that served the Albany region. It also served several CLEC prefixes. Current photo and photo 2: GSV. Photos 3-4: September 2012

 

Albany

"Delmar"

Listing Updated:
June 2023

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

CLLI:
DLMRNYDARP0

Switch Type:
Remote Packet Switch (unknown type)

Prefixes Served:
(518) 439, 475, 478

Notes:
Source: GSV

 

Albany

"East Greenbush"

Photo 2

Listing Updated:
July 2023

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

CLLI:
EGNBNYEGRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS EXM

Prefixes Served:
(518) 477, 479

Notes:
Current photo: GSV. Photo 2: September 2012. An eastern suburb of Albany

 

Albany

"Washington"

Listing Updated:
September 2019

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

CLLI:
ALBYNYWADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 435, 437-8, 442, 446, 451, 453-4, 457-9, 482, 485, 489, 525, 591

Notes:
Source: GSV

 

Amsterdam

Listing Updated:
July 2023

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

CLLI:
AMSTNYPEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 627, 841-3

Notes:
Source: GSV

 

Averill Park

Photo 2 | Photo 3

Listing Updated:
August 2023

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

CLLI:
AVPKNYAVDS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(518) 674

Notes:
Current photo: GSV. Photos 2-3: September 2012

 

Ballston Spa

Listing Updated:
July 2022

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

CLLI:
BALSNYBARS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(518) 363, 884-5

Notes:
Source: GSV

 

Canajoharie

Listing Updated:
September 2022

Operating Company:
Frontier/Citizens

CLLI:
CNJHNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 673

Notes:
Source: GSV

 

Catskill

Listing Updated:
September 2019

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

CLLI:
CTSKNYCTDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 943, 945

Notes:
Also serves the Athens ratecenter. Source: GSV

 

Champlain

Listing Updated:
October 2023

Operating Company:
Champlain Telephone Company

CLLI:
CHPLNYAJDS0

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(518) 236, 297-8

Notes:
Serves multiple ratecenters. Source: GSV

 

Colonie

"Latham"

Listing Updated:
September 2019

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

CLLI:
LTHMNYTSDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 220, 782-3, 785-6

Notes:
Source: GSV

 

Coxsackie

Listing Updated:
October 2015

Operating Company:
State Telephone Company

CLLI:
CXSCNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 731

Notes:
Source: GSV

 

Elizabethtown

Listing Updated:
November 2023

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

CLLI:
EZTWNYEZRS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 873

Notes:
Source: GSV

 

Fonda

Listing Updated:
June 2023

Operating Company:
Frontier/Citizens

CLLI:
FONDNYXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 853

Notes:
Source: GSV

 

Germantown

Listing Updated:
August 2023

Operating Company:
Archtop Fiber Company/Germantown Telephone Company

CLLI:
GMTWNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 537

Notes:
Source: GSV

 

Glens Falls

"Main"

Listing Updated:
May 2023

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

CLLI:
GLFLNYGFDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 742-3, 745, 761, 792-3, 798, 812, 926

Notes:
Source: GSV

 

Glens Falls

"Hudson Falls"

Listing Updated:
February 2022

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

CLLI:
HDFLNYMSRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(518) 746-7

Notes:
Source: GSV

 

Gloversville

Listing Updated:
August 2022

Operating Company:
Frontier/Citizens

CLLI:
GLVVNYXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
(518) 571, 725, 773, 775

Notes:
Source: GSV

 

Hoosick Falls

Photo 2

Listing Updated:
May 2023

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

CLLI:
HSFLNYHSDS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(518) 686

Notes:
Current photo: GSV. Photo 2:  May 2015

 

Hudson

Listing Updated:
September 2019

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

CLLI:
HDSNNYHDDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 671, 822, 828

Notes:
Source: GSV

 

Johnstown

Listing Updated:
July 2019

Operating Company:
Frontier/Citizens

CLLI:
JHTWNYXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 736, 762

Notes:
Source: GSV

 

Keeseville

Listing Updated:
November 2023

Operating Company:
Frontier/Rochester Telephone Company/AuSable Valley Telephone Company

CLLI:
KSVLNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 834

Notes:
Source: GSV

 

Kinderhook

"Main"

Listing Updated:
July 2023

Operating Company:
Consolidated Communications/Berkshire Telephone Company

CLLI:
KNDRNYXADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 758, 799

Notes:
Source: GSV

 

Lake Pleasant

Listing Updated:
August 2022

Operating Company:
Frontier/Citizens

CLLI:
LKPLNYXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 548

Notes:
Source: GSV

 

Malone

Listing Updated:
December 2023

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

CLLI:
MALNNYMMDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 481, 483

Notes:
Source: GSV

 

Nassau

Photo 2 | Photo 3

Listing Updated:
September 2019

Operating Company:
Consolidated Communications/Fairpoint/Tacoinc Telephone

CLLI:
NASSNYXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 766

Notes:
Not to be confused with Nassau County, Long Island which is in Area Code 516. Current photo: GSV. Photos 2-3: September 2012.

 

Plattsburgh

Listing Updated:
November 2023

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

CLLI:
PLBGNYPBDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 561-3, 565-6, 735

Notes:
Source: GSV

 

Ravena

Listing Updated:
June 2023

Operating Company:
State Telephone Company

CLLI:
RAVNNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 756

Notes:
Source: GSV

 

Rotterdam Junction

Listing Updated:
August 2019

Operating Company:
Pattersonville Telephone Company

CLLI:
RTJTNYXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(518) 887

Notes:
Source: GSV

 

Salem

Photo 2

Listing Updated:
March 2022

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

CLLI:
SALMNYSMDS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(518) 854

Notes:
Current photo: GSV. Photo 2: May 2015

 

Saratoga Springs

Listing Updated:
July 2019

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

CLLI:
SRSPNYSRDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 226, 580-1, 583-4, 587, 633

Notes:
Source: GSV

 

Schenectady

"Main"

Listing Updated:
August 2022

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

CLLI:
SCHNNYSCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 344, 346-7, 370, 372, 374, 377, 381-2, 386-8, 393, 395, 631

Notes:
Source: GSV

 

Schenectady

"Clifton Park"

Listing Updated:
July 2022

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

CLLI:
CLPKNYCPDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 348, 371, 373, 383

Notes:
Source: GSV

 

Schenectady

"Curry Road"

Listing Updated:
July 2022

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

CLLI:
SSCHNYSODS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 355-7, 379, 630

Notes:
Source: GSV

 

Schenectady

"East Glenville"

Listing Updated:
August 2022

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

CLLI:
EGLVNYGLDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 384, 399

Notes:
Source: GSV

 

Ticonderoga

Listing Updated:
August 2021

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

CLLI:
TCNDNYTIRS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 585

Notes:
Source: GSV

 

Troy

"3rd Avenue"

Listing Updated:
May 2023

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

CLLI:
TROYNY03DS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(518) 233, 235, 237-8, 590

Notes:
Source: GSV

 

Troy

"4th Street"

Listing Updated:
June 2022

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

CLLI:
TROYNY04DS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 266, 270-4, 629

Notes:
Source: GSV

 

Troy

"Center Brunswick"

Listing Updated:
August 2023

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

CLLI:
CTBRNYCBRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(518) 279

Notes:
Source: GSV

 

Troy

"North Greenbush"

Listing Updated:
July 2023

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

CLLI:
NGRNNYNGDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(518) 283, 285-6

Notes:
Source: GSV

 

West Lebanon

Photo 2 | Photo 3

Listing Updated:
September 2012

Operating Company:
Consolidated Communications/Fairpoint/Tacoinc Telephone

CLLI:
WLBNNYXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(518) 794

Notes:
Odd doesn't start to describe this place.  It appears that this CO once occupied a second building immediately behind the current CO building. This second building was most recently an Italian restaurant (now closed).

Also note that this CO also serves as the cable TV head end for this town, and the aerial outside cable plant that goes into the side of the roof of the building.

 

Visit other New York Area Codes: 212 315 516 518 585 607 631 716 718 845 914

Visit nearby regions: Connecticut Massachusetts New Jersey Ontario Pennsylvania Quebec Vermont


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Page last modified June 21, 2024
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