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Area Codes 847 & 224
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Codes 847 & 224 (Illinois).
Click on the pictures below for a larger version.
Algonquin
Listing Updated:
September 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
ALGNILAQDS0Switch Type:
Nokia/Siemens EWSD DE4 RCUPrefixes Served:
(847) 458, 532, 658, 854Notes:
Source: E. Stadick
Arlington Heights
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
ARLHILAHDS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 232, 625
(847) 222-3, 255, 259, 342, 368, 392, 394, 398, 506, 577, 590, 618, 632, 670, 788, 797, 818, 870Notes:
Source: E. Stadick
Barrington
Listing Updated:
July 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
BNTOILBADS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(847) 277, 304, 381-2, 842Notes:
Source: E. Stadick
Cary
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CARYILCADS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(847) 462, 516, 639Notes:
Source: E. Stadick
Deerfield
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
DRFDILDFDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 632
(847) 236, 267, 282, 315, 317, 374, 405, 444, 527, 579, 831, 914, 940, 945, 948Notes:
Source: JDD
Des Plaines
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Sprint/CentelCLLI:
DSPLILXLDS0
DSPLILXLDS1Switch Type:
DS0: Ribbon/Genband/Nortel DMS-100
DS1: Nokia/Alcatel/Lucent 5ESSPrefixes Served:
DS0: (224) 361 (773) 694, 741 (847) 294, 390, 635, 699, 768, 795
DS1: (773) 825 (847) 296-9, 375, 391, 493, 759, 803, 824, 827, 953Notes:
Until 1997, Des Plaines was owned by an independent phone company (Centel, then later Sprint). In 1997 Sprint sold this CO to Ameritech. In a very rare case Western Electric had sold Centel a #5 Crossbar switch in order to be compatible with the switches in Chicago (then mostly Panel) since Step by Step and Panel can't communicate well. Picture source: GSV
Dundee
"East Dundee"
Listing Updated:
September 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
EDNDILDUDS0Switch Type:
Nokia/Siemens EWSD DE4 RCUPrefixes Served:
(224) 293
(847) 426, 428, 551, 836, 844Notes:
Source: E. Stadick
Elgin
Listing Updated:
September 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
ELGNILELDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 783
(630) 497
(847) 289, 429, 468, 488, 608, 695, 697, 741-2, 888, 931Notes:
Source: E. Stadick
Elk Grove Village
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
EGVGILEGDS0
EGVGILEGDS1Switch Type:
DS0: Nokia/Alcatel/Lucent 5ESS
DS1: Ribbon/Genband/Nortel DMS-100Prefixes Served:
DS0: (847) 238, 250, 262, 290, 350, 357, 427, 545, 595, 616, 734, 766, 773, 787, 806, 860
DS1: (773) 569 (847) 228, 354, 364, 437, 439, 472, 593, 640, 690, 700, 718, 758, 952, 956, 981Notes:
Also serves the Bensenville ratecenter.
Source: E. Stadick
Evanston
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
EVTNILEVDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 364
(773) 273
(847) 316, 328, 332, 424-5, 467, 475, 491-2, 570, 733, 864, 866, 869Notes:
Source: TCO
Glenview
Listing Updated:
July 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
GLVWILGVDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 521
(847) 486, 646, 657, 724, 729, 832, 998Notes:
Source: JDD
Highland Park
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
HGPKILHPDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 765
(847) 266, 432-3, 681, 926Notes:
Source: JDD
Lake Forest
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
LKFRILLFDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 212, 544, 552
(847) 234, 283, 295, 482, 535, 582, 604, 615, 735Notes:
Source: TCO
Morton Grove
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
MRGVILMGDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(847) 470, 581, 583, 663, 965-7Notes:
Source: Mark J.
Northbrook
Listing Updated:
May 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
NBRKILNBDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(847) 205, 272, 291, 412, 480, 498, 509, 559, 562, 564, 664, 714, 753, 849Notes:
Source: JDD
Palatine
Listing Updated:
July 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PALTILPADS0Switch Type:
Nokia/Siemens EWSD Remote Switch Unit RSU-DE4Prefixes Served:
(224) 836
(847) 202, 358, 359, 485, 705, 776, 934, 963, 991Notes:
Source: E. Stadick
Schaumburg
Listing Updated:
July 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
SCBGILCODS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 698
(847) 330, 407, 413, 517, 605, 619, 706, 762, 874, 944, 969, 995Notes:
Source: E. Stadick
Schaumburg North
"Main"
Listing Updated:
July 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
SCBGILRSDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(847) 435, 523, 538, 576, 761, 907Notes:
Source: E. Stadick
Willowcrest
"Hoffman Estates"
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
HFESILWLDS1Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 653
(630) 872
(847) 252, 303, 310, 348, 397, 490, 519, 536, 755, 781, 839, 843, 880, 882, 884-5, 925Notes:
Source: TCO
Wilmette
Listing Updated:
November 2011Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WLMTILWIDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(847) 251, 256, 853, 920Notes:
Source: TCO
Winnetka
Listing Updated:
June 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WNTKILWNDS0Switch Type:
Nokia/Siemens EWSD DE4 RCUPrefixes Served:
(847) 242, 441, 446, 501, 784, 835Notes:
Source: JDD
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Copyright 2020 Telephone Central Office Building
Pictures |