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Area Code 734
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 734 (Michigan).

Click on the pictures below for a larger version.


Ann Arbor

"Main"
 

Listing Updated:
November 2020

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

CLLI:
ANARMIMNDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
DS0: (734) 213-4, 222, 232, 302, 327, 332, 565, 615, 622-3, 647, 662-3, 665, 668-9, 741, 747, 761, 763-4, 769, 827, 913, 930, 936, 994, 995-8

Notes:
This building had a second 5ESS (DS1). The prefixes served by this switch were absorbed by the DS0 switch in July 2012. Photo source: GSV

 

Livonia

"Main"
 

Listing Updated:
September 2023

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

CLLI:
LIVNMIMNRP0

Switch Type:
Ribbon/Genband MG-9000 ABI Remote Packet Switch

Prefixes Served:
(313) 937
(734) 261, 266, 421-2, 425, 427, 458. 513, 522-5, 762

Notes:
Until 2010, this CO building housed both a WECO 1AESS switch and a Ribbon/Genband/Nortel DMS-100 switch. This CO also serves parts of Detroit Zone 05 and Wayne.

Host: WAYNMIMN20T/DS1

Source: GSV

 

Monroe

"Main"
 

Listing Updated:
June 2018

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

CLLI:
MONRMIMNDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(734) 240-3, 384, 457

Notes:
Source: GSV

 

Romulus

"Main"
 

Listing Updated:
December 2021

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

CLLI:
RMLSMIMNDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(734) 229, 247, 941-2, 955

Notes:
Source: GSV

 

Wayne

"Main"
 

Listing Updated:
September 2023

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

CLLI:
WAYNMIMNDS0

Switch Type:
Nokia Siemens EWSD DE5

Prefixes Served:
(734) 326, 467, 595, 641, 721-2, 727-9

Notes:
Source: GSV

 

Wyandotte

"Main"
 

Listing Updated:
September 2022

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

CLLI:
WYNDMIMNRP0

Switch Type:
Ribbon/Genband MG-9000 remote packet switch

Prefixes Served:
(734) 246, 281-5, 324

Notes:
This office had a WECO 1AESS until 2010. It was replaced with a Ribbon/Genband MG-9000 remote (hosted from the Wayne tandem switch (WAYNMIMN20T/DS1). 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


Copyright 2023 Telephone Central Office Building Pictures
Page last modified November 8, 2023
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