Area Code 414
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 414 (Milwaukee, WI metro).

Click on the pictures below for a larger version.

Milwaukee Zone 1 "Aetna" Photo 2 | Photo 3 | Photo 4	Listing Updated: August 2018 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI12DS2 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 256-9, 266, 280, 302, 337, 443, 453-4, 456, 471, 475-6, 479, 607, 771, 773-4, 777-8, 805, 844, 936, 955 Notes: Old EXchange Name: BLue Mound (257, 258, 259), SPring (771, 774), GLen View (453), GReenfield (475, 476). Originally a Panel Office (257, 258, 259, 475, 476) and #1 Crossbar (453, 771, 774). Panel changed in 1970-71 to 1ESS, upgraded to 1AESS by 1985 when 453, 771, 774 was folded in, now a DMS-100. The #1 Crossbar had high type "City Ring". When the office had the 1AESS & 1XB, the pay phones were on the 1AESS with the 475 prefix Current photo: GSV. Photos 2 to 4: Joe M. (May 2007)
Milwaukee Zone 1 "Broadway" Photo 2	Listing Updated: December 2022 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI13DS1 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 212, 219-21, 223-27, 231, 244, 270-4, 276-8, 283, 286-9, 291, 297-9, 347, 390, 524, 665, 765, 792, 905 Notes: Old EXchange Name: BRoadway, FIre-7 (347-2323) and POlice (765-2323) prior to use of 911. Originally was a Panel and #1 Crossbar, now a DMS-100. Current photo: GSV. Photo 2: Joe M. (May 2007)
Milwaukee Zone 1 "Capital" Photo 2	Listing Updated: November 2022 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI22DS0 Switch Type: Nokia/Siemens EWSD Prefixes Served: (414) 332, 906, 961-4, 967 Notes: Old EXchange Name: 332 was EDgewood-2, 962-4 was WOodruff 2-4. In 1970 332 and 962-964 were #1 crossbar with City Ring, 961-963 were added with a 1ESS switch. It is now a EWSD. Current photo: GSV. Photo 2: Joe M. (July 2009)
Milwaukee Zone 1 "Cleveland" Photo 2	Listing Updated: September 2014 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI30DS0 Switch Type: Nokia/Siemens EWSD Prefixes Served: (414) 321, 327-9, 541, 543, 545-6, 604 Notes: Old EXchange Name: LIncoln-1,3,5,6, FAirview (321, 327, 328, 329). Originally was a #1 Crossbar, changed to 1AESS by 1985, now an EWSD. Current photo: GSV. Photo 2: Joe M. (May 2007)
Milwaukee Zone 1 "Fond Du Lac Ave." Photo 2	Listing Updated: December 2022 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI28DSA Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 353, 358, 461-6, 527, 535-6, 578, 616, 760 Notes: Old EXchange Name: HOpkins, FLagstone (353), EXeter (393). Orginally a #1 Crossbar, changed to a 1AESS by 1985, now is a DMS-100. As a #1XB, it had a "soft City ring" and a neat sounding reorder. Current photo: GSV. Photo 2: Joe M. (May 2007)
Milwaukee Zone 1 "Grange" Photo 2	Listing Updated: August 2022 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI10DSA Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (414) 281-2, 304, 325, 421, 423, 661, 761, 817, 855 Notes: Old EXchange Name: ATlantic, SOuth (761) Originally was a #5 Crossbar, now a 5ESS. Current photo: GSV. Photo 2: Joe M. (May 2007)
Milwaukee Zone 1 "Logan" Photo 2	Listing Updated: October 2021 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI42DS0 Switch Type: Nokia/Siemens EWSD Prefixes Served: (414) 294, 481-3, 486, 489, 744, 747, 769 Notes: Old EXchange Name: SHeridan (744, 747), HUmboldt (481, 482, 483, 489), SOuth (769). Originally was a 1AESS. Current photo: GSV. Photo 2: Joe M. (June 2007)
Milwaukee Zone 1 "North 26th" Photo 2 | Photo 3	Listing Updated: October 2019 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI48DSA Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (414) 342-5, 678, 799, 931, 933-5, 937 Notes: Old EXchange name: DIvision (342, 344, 345), WEst (944, 934, 935, 937). At one time was the operator center for the Milwaukee area. Has a 5ESS. Photo 2 shows the former microwave tower. Current photo: GSV. Photos 2 and 3: Joe M. (May 2007)
Milwaukee Zone 1 "North 41st" Photo 2 | Photo 3 | Photo 4	Listing Updated: September 2019 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI27DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 442, 444-5, 447, 449, 871, 873-5 Notes:This office most likely stated out as a Manual office and was converted to dial (Panel Office) around 1930. A Number 1 Crossbar switch (#1XB) was added later. Panel was changed to 1ESS in 1970. The #1XB was folded into 1AESS in 1985, and later changed to DMS-100 around 2000. Old EXchange Names: Panel: HIlltop 2, HIlltop 4 and HIltop 5. #1XB: UPtown 1, UPtown 2 and UPtown 3. 447 and 449 added later. Pay phones were 447 prefix after 1970. Current photo: GSV. Photos 2 to 4: Joe M. (February 2009)
Milwaukee Zone 1 "South 26th" Photo 2	Listing Updated: September 2014 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI34DS1 Switch Type: Nokia/Siemens EWSD Prefixes Served: (414) 382-5, 389, 645-7, 649, 671-2, 902 Notes: Old EXchange Names: MItchell (643, 645, 647), EVegreen (383, 384), ORchard (671, 672) 643,5,7 was Panel 383,4 & 671,2 were 1XB before 1970. After 1970 the Panel was changed to a 1ESS. In 1985 it was changed to a 1AESS and the 1XB was folded into the 1AESS. Current photo: GSV. Photo 2: Joe M. (June 2007)
Milwaukee Zone 1 "Wright Street" Photo 2	Listing Updated: September 2019 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI17DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 263-5, 267, 336, 372, 374, 562 Notes: Original EXchange names: COcord-4 and LOcust-2. Began as a Panel office, then a #5XB ans now a DMS-100. Current photo: GSV. Photo 2: Joe M. (February 2009)
Milwaukee Zone 3 "Forest Home" Photo 2	Listing Updated: October 2022 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI25DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (414) 425, 427, 525, 529 Notes: Old EXchange Name: GArden-2, 5. Orignally was a #5 Crossbar with "dirty" ESS Ring, later a 1AESS and now a DMS-100. Current photo: GSV. Photo 2: Joe M. (May 2007)
Milwaukee Zone 4 "County Line Road" Photo 2 | Photo 3	Listing Updated: August 2023 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI16DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (262) 236, 238, 242, 512 (414) 354-5, 357, 362, 365, 371, 586 Notes: The Milwaukee County Line Road switch is located on 74th and County Line Rd. This office was built in 1956 to provide dial service to Mequon, WI which was manual service until then and to relieve over crowding on the Fond Du Lac switch which was a Panel switch at that time.  EXchange name was FLagstone 4 & 5. The original Switch was a Number 5 Crossbar. This switch is a in a more rural open area and sports the new at&t logo sign. Also serves parts of Thiensville ratecenter. Current photo: GSV. Photos 2 and 3: Joe M. (September 2012)
Milwaukee Zone 4 "Good Hope Road" Photo 2 | Photo 3 | Photo 4	Listing Updated: October 2015 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI23DS0 Switch Type: Nokia/Siemens EWSD RSU Prefixes Served: (262) 240-1 (414) 228, 247, 351-2, 540 Notes: Serves the Northeast side of Milwaukee County and the extreme southeastern part of Ozaukee County. Pictures are of the building the old Wisconsin Telephone county sign still there the length of the building Is in a residential area. Also serves parts of Thiensville ratecenter. Current photo: GSV. Photos 2 to 4: Joe M. (September 2012)
Milwaukee Zone 4 "Park Place"	Listing Updated: August 2019 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI38RS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (414) 359, 577, 815, 979 Notes: Source: GSV
Milwaukee Zone 5 "Howell" Photo 2 | Photo 3	Listing Updated: July 2023 Operating Company: at&t/SBC/Ameritech/Wisconsin Telephone CLLI: MILWWI56DS0 Switch Type: Nokia/Siemens EWSD Prefixes Served: (414) 570-1, 762, 764, 766, 768 Notes: Old EXchange Name: SOuth (762, 764, 768) New central office building with EWSD. Photo 2 shows original South building (once housed a 1AESS switch) Current photo: GSV. Photos 2 and 3: Joe M. (June 2007)

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