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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:
September 2012Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
ANARMIMNDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes 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, 995-8Notes:
This building had a second 5ESS (DS1). The prefixes served by this switch were absorbed by the DS0 switch in July 2012. Photo source: TCO
Livonia
"Main"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
LIVNMIMNRP0Switch Type:
Ribbon/Genband MG-9000 ABI Remote Packet SwitchPrefixes Served:
(313) 937
(734) 261, 266, 421-2, 425, 427, 458. 513, 522-5, 762Notes:
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: TCO
Monroe
"Main"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
MONRMIMNDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(734) 240-3, 384, 457Notes:
Source: TCO
Romulus
"Main"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
RMLSMIMNDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(734) 229, 247, 941-2, 955Notes:
Source: TCO
Wayne
"Main"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
WAYNMIMNDS0Switch Type:
Nokia Siemens EWSD DE5Prefixes Served:
(734) 326, 467, 595, 641, 721-2, 727-9Notes:
Source: TCO
Wyandotte
"Main"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Michigan BellCLLI:
WYNDMIMNRP0Switch Type:
Ribbon/Genband MG-9000 remote packet switchPrefixes Served:
(734) 246, 281-5, 324Notes:
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: TCO
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