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Area Code 810
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 810 (East Central Michigan).

Click on the pictures below for a larger version.


Algonac

"Main"

Listing Updated:
September 2015

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
ALGNMIMNRS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(810) 794

Notes:
Source: GSV

 

Brighton

"Main"

Listing Updated:
November 2020

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
BITNMIESDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(810) 220, 225, 227, 229, 494, 844

Notes:
Source: GSV

 

Clio-Mount Morris

"Clio"

Listing Updated:
May 2023

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
CLIOMIMNDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(810) 564, 686-7

Notes:
Source: GSV

 

Davison

Listing Updated:
May 2022

Operating Company:
Frontier/Verizon/GTE

CLLI:
DVSNMIXGDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(810) 652-4, 658

Notes:
Source: GSV

 

 

Flint

"Main"

 

Listing Updated:
March 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
FLNTMIMNDS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(810) 232-9, 251, 257, 282, 341-2, 424, 762, 766-8, 780, 835

Notes:
Source: GSV

 

Flint

"Burton"

Listing Updated:
May 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
BTNGMIPGDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(810) 301, 715, 742-4

Notes:
Source: GSV

 

Flint

"North"

Listing Updated:
May 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
FLNTMINRDS0

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(810) 785, 787, 789

Notes:
Source: GSV

 

Flint

"Northeast"

Listing Updated:
May 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
FLNTMINEDS0

Switch Type:
Nokia/Simens DE3 RCU

Prefixes Served:
(810) 250, 640, 736

Notes:
Source: GSV

 

Flint

"Northwest"

Listing Updated:
July 2019

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
FLNTMINWDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(810) 230, 720, 723-3

Notes:
Source: GSV

 

Flushing

Listing Updated:
May 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
FLSHMIFSDS0

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(810) 487, 659

Notes:
Source: GSV

 

Goodrich

Listing Updated:
May 2023

Operating Company:
Brightspeed/CenturyLink/CenturyTel

CLLI:
GDRCMIXJDS1

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(810) x

Notes:
Source: GSV

 

Grand Blanc

Listing Updated:
May 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
GRBLMIMNDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(810) 603, 606, 694-5, 953

Notes:
Source: GSV

 

Hadley

Listing Updated:
June 2023

Operating Company:
Brightspeed/CenturyLink/CenturyTel

CLLI:
HDLYMIXIDS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(810) 797

Notes:
Source: GSV

 

Imlay City

Listing Updated:
May 2022

Operating Company:
Frontier/Verizon/GTE

CLLI:
IMCYMIXHDS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD5-EAX

Prefixes Served:
(810) 721, 724

Notes:
Source: GSV

 

Lapeer

Listing Updated:
June 2022

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
LPERMILPDS0

Switch Type:
Nokia/Siemens DE5 RCU

Prefixes Served:
(810) 245, 664, 667

Notes:
Source: GSV

 

Lennon

Listing Updated:
August 2019

Operating Company:
Lennon Telephone Company

CLLI:
LNONMIXIDS1

Switch Type:
Metaswitch VP2510

Prefixes Served:
(810) 621

Notes:
Source: GSV

 

Montrose

Listing Updated:
August 2019

Operating Company:
Brightspeed/CenturyLink/CenturyTel

CLLI:
MTRSMIXIDS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(810) 639

Notes:
Source: GSV

 

Port Huron

"Main"

 

Listing Updated:
October 2021

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
PTHRMIMNDS1

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(810) 887, 966, 982, 984-5, 987, 989

Notes:
Source: GSV

 

Port Huron

"Marysville"

Listing Updated:
May 2019

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
MYVIMIMNRSA

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(810) 364, 388

Notes:
Source: GSV

 

Port Huron

"NR (North Remote)"

Listing Updated:
June 2019

Operating Company:
at&t/SBC/Ameritech/Michigan Bell

CLLI:
PTHRMINRRSA

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(810) 385

Notes:
Source: GSV

 

Swartz Creek

Listing Updated:
April 2022

Operating Company:
Frontier/Verizon/GTE

CLLI:
SWCRMIXGDS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD5-EAX

Prefixes Served:
(810) 628, 630, 635

Notes:
Source: GSV

 

Visit other Michigan Area Codes: 231 248 269 313 517 586 616 734 810 906 989

Visit nearby regions: Indiana Ohio Ontario Wisconsin


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Page last modified July 15, 2023
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