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Primary City:Chicago

This is the Primary City:Chicago page list. Its detail is as below.
Prefix State Usage Carrier Name
(312) 253- Illinois Landline Allegiance Telecom
(312) 254- Illinois Landline Allegiance Telecom
(312) 255- Illinois Landline Ameritech Illinois
(312) 256- Illinois Landline Allegiance Telecom
(312) 257- Illinois Wireless Cellco Partnership DBA Verizon Wireless
(312) 258- Illinois Landline Ameritech Illinois
(312) 259- Illinois Wireless New Cingular Wireless PCS
(312) 260- Illinois Landline Mcimetro Access Transmission Services LLC
(312) 261- Illinois Landline Broadwing Communications
(312) 262- Illinois Landline Allegiance Telecom
(312) 263- Illinois Landline Ameritech Illinois
(312) 264- Illinois Landline Broadwing Communications
(312) 265- Illinois Landline Access One
(312) 266- Illinois Landline Ameritech Illinois
(312) 267- Illinois Landline Ameritech Illinois
(312) 268- Illinois Landline Broadwing Communications
(312) 269- Illinois Landline Ameritech Illinois
(312) 271- Illinois Wireless Usa Mobility Wireless
(312) 272- Illinois Wireless Usa Mobility Wireless
(312) 273- Illinois Wireless Cellco Partnership DBA Verizon Wireless
(312) 274- Illinois Landline Ameritech Illinois
(312) 275- Illinois Landline Allegiance Telecom
(312) 276- Illinois Landline Allegiance Telecom
(312) 277- Illinois Landline Allegiance Telecom
(312) 278- Illinois Landline Broadwing Communications
(312) 279- Illinois Landline Mcimetro Access Transmission Services LLC
(312) 280- Illinois Landline Ameritech Illinois
(312) 281- Illinois Landline Global Crossing Local Services-il
(312) 282- Illinois Wireless New Cingular Wireless PCS
(312) 283- Illinois Landline Global Crossing Local Services-il
(312) 284- Illinois Landline Xo Illinois
(312) 285- Illinois Wireless Sprint Spectrum L.p.
(312) 286- Illinois Wireless New Cingular Wireless PCS
(312) 287- Illinois Wireless Sprint Spectrum L.p.
(312) 288- Illinois Landline Mcimetro Access Transmission Services LLC
(312) 289- Illinois Wireless Usa Mobility Wireless
(312) 290- Illinois Wireless Usa Mobility Wireless
(312) 291- Illinois Landline Ameritech Illinois
(312) 292- Illinois Wireless Bandwidth.com Clec
(312) 293- Illinois Landline Ameritech Illinois
(312) 294- Illinois Landline Ameritech Illinois
(312) 296- Illinois Wireless Sprint Spectrum L.p.
(312) 297- Illinois Landline Ameritech Illinois
(312) 298- Illinois Landline Sigecom
(312) 299- Illinois Wireless Usa Mobility Wireless
(312) 300- Illinois Landline Net Talk.com
(312) 302- Illinois Landline Ameritech Illinois
(312) 306- Illinois Landline Ameritech Illinois
(312) 307- Illinois Wireless New Cingular Wireless PCS
(312) 308- Illinois Landline Ameritech Illinois