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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
Antioch
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
ANTCILACDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(262) 396
(847) 395, 838Notes:
Also serves North Antioch, WI. Source: GSV
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
Barrington South
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
BNTOILAGDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 512
(847) 248, 765, 898Notes:
Source: GSV
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:
April 2021Operating 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: GSV
Fox Lake
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
FXLKILFKDS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(847) 497, 587, 973Notes:
Source: GSV
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
Grayslake
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
GYLKILGLDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(224) 541
(847) 223, 543, 548, 665, 752Notes:
Source: GSV
Hampshire
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
HMPSILHSRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(847) 683Notes:
Source: GSV
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
Huntley
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
HNTLILHODS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 569, 654
(847) 669, 802, 961Notes:
Source: GSV
Lake Forest
Listing Updated:
April 2021Operating 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: GSV
Lake Villa
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
LKVLILLKDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(224) 444, 643
(847) 265, 356Notes:
Source: GSV
Lake Zurich
Listing Updated:
December 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
LKZRILLZDS0Switch Type:
Nokia/Siemens EWSD RSU-DE4Prefixes Served:
(847) 438, 540, 550, 726, 862Notes:
Source: E. Stadick
Libertyville
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
LBVLILLIDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(847) 247, 362, 367, 522, 549, 566Notes:
Source: GSV
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.
North Chicago
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
NCHCILNCDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(224) 302, 399, 572, 665, 667-8, 772
(847) 473, 578, 689, 775, 785, 887, 935-8Notes:
Also serves parts of Waukegan. Source: GSV
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
Northbrook West
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
NBRKILNTDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(847) 326, 402, 513, 667Notes:
Source: GSV
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
Park Ridge
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PRRGILXLDS0
PRRGILXLDS1Switch Type:
DS0: Ribbon/Genband/Nortel DMS-100
DS1: Nokia/Alcatel/Lucent 5ESSPrefixes Served:
DS0: (773) 380, 399, 864, 867
(847) 318, 384, 698DS1: (773) 444, 693, 695, 714
(847) 292, 518, 685, 692, 696, 723, 823, 825Notes:
Also serves parts of Chicago Zone 3 (Newcastle). Source: GSV
Plato Center
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
PLCTILPRRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(847) 464Notes:
Source: GSV
Poplar Creek
"Hoffman Estates"
Listing Updated:
January 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
HFESILPCDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(847) 286, 396, 645, 747Notes:
Also serves the Dundee ratecenter. Source: E. Stadick
Round Lake
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
RNLKILRLDS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(847) 270, 546, 740Notes:
Source: GSV
Schaumburg
Listing Updated:
July 2020 / January 2021Operating 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:
Photo 2 shows the building in the winter time without trees (January 2021). 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
Schiller Park
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
SCPKILSPDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 992
(847) 671, 678, 928Notes:
Source: GSV
Skokie
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
SKOKILSKDS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(224) 251, 592
(847) 329, 568, 573-7, 679, 763, 933, 982Notes:
Source: GSV
Wauconda
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WCNDILWUDS0Switch Type:
Nokia/Siemens EWSD DE5 RCUPrefixes Served:
(847) 487, 526Notes:
Source: GSV
Waukegan
"Main"
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WKGNILWKDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(847) 244, 249, 263, 336, 360, 599, 623, 625, 662, 782Notes:
Source: GSV
Waukegan
"Gurnee"
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
GURNILAARS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(847) 855-6Notes:
Source: GSV
Wheeling
"Main"
Listing Updated:
January 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WLNGILWGDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(224) 542
(847) 215, 229, 279, 419, 459, 465, 478, 520, 537, 541, 552, 554, 617, 634, 793, 808, 821, 883, 913, 955Notes:
Source: E. Stadick
Wheeling
"Lincolnshire"
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
LNSRILABRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(847) 793, 883Notes:
Source: GSV
Willowcrest
"Hoffman Estates"
Listing Updated:
April 2021Operating 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: GSV
Wilmette
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WLMTILWIDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(847) 251, 256, 853, 920Notes:
Source: GSV
Winnetka
Listing Updated:
June 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
WNTKILWNDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(847) 242, 441, 446, 501, 784, 835Notes:
Source: JDD
Zion
Listing Updated:
April 2021Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
ZIONILZNDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(847) 731, 746, 872Notes:
Source: GSV
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Copyright 2021 Telephone Central Office Building
Pictures |