Local Calling Guide
Area code/prefix search
NPA: 773
[Rate centres in NPA 773]
[Dial plan for NPA 773]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 773-240
| 0 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-11-30 |
|
| 773-240
| 1 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-11-30 |
|
| 773-240
| 2 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-11-30 |
|
| 773-240
| 3 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-11-30 |
|
| 773-240
| 4 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-12-07 |
|
| 773-240
| 5 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-12-07 |
|
| 773-240
| 6 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-12-07 |
|
| 773-240
| 7 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-12-07 |
|
| 773-240
| 8 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-12-07 |
|
| 773-240
| 9 |
Chicago Zone 10-Beverly |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2007-11-30 |
|
| 773-241
| A |
Chicago Zone 07-Hyde Park |
IL |
CHCGILDODS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-241
| 0 |
Chicago Zone 07-Hyde Park |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2005-06-13 |
|
| 773-241
| 1 |
Chicago Zone 07-Hyde Park |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2006-03-05 |
|
| 773-241
| 2 |
Chicago Zone 07-Hyde Park |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2006-03-05 |
|
| 773-241
| 3 |
Chicago Zone 07-Hyde Park |
IL |
CHCGILWUX6X |
460K FIRST COMMUNICATIONS, LLC |
358 |
|
2004-11-12 |
|
| 773-241
| 4 |
Chicago Zone 07-Hyde Park |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2005-06-13 |
|
| 773-241
| 5 |
Chicago Zone 07-Hyde Park |
IL |
CHCGILDODS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-241
| 6 |
Chicago Zone 07-Hyde Park |
IL |
CHCGILDODS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-241
| 7 |
Chicago Zone 07-Hyde Park |
IL |
CHCGIL245MD |
073H TELNYX LLC |
358 |
|
2020-11-12 |
|
| 773-241
| 8 |
Chicago Zone 07-Hyde Park |
IL |
CHCGILWUKMD |
939H COMMIO, LLC |
358 |
|
2021-08-29 |
|
| 773-241
| 9 |
Chicago Zone 07-Hyde Park |
IL |
RVDLILBDAMD |
6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL |
358 |
|
2006-03-05 |
|
| 773-242
| A |
Chicago Zone 05-Austin |
IL |
CICRILCIDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-242
| 0 |
Chicago Zone 05-Austin |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2008-08-12 |
|
| 773-242
| 1 |
Chicago Zone 05-Austin |
IL |
CICRILCIDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-242
| 2 |
Chicago Zone 05-Austin |
IL |
CHCGILDTKMD |
5447 ACCESS ONE, INC. - IL |
358 |
|
2006-01-20 |
|
| 773-242
| 3 |
Chicago Zone 05-Austin |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2010-07-30 |
|
| 773-242
| 4 |
Chicago Zone 05-Austin |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2010-07-30 |
|
| 773-242
| 5 |
Chicago Zone 05-Austin |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2010-07-30 |
|
| 773-242
| 6 |
Chicago Zone 05-Austin |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2010-11-27 |
|
| 773-242
| 7 |
Chicago Zone 05-Austin |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-08-26 |
|
| 773-242
| 8 |
Chicago Zone 05-Austin |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-08-26 |
|
| 773-242
| 9 |
Chicago Zone 05-Austin |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-06-17 |
|
| 773-243
| A |
Chicago Zone 03-Kildare |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 773-243
| 0 |
Chicago Zone 03-Kildare |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 773-243
| 1 |
Chicago Zone 03-Kildare |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
|
|
| 773-243
| 2 |
Chicago Zone 03-Kildare |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2025-09-07 |
|
| 773-243
| 4 |
Chicago Zone 03-Kildare |
IL |
CHCGIL24DS6 |
224C ONVOY, LLC |
358 |
|
2019-07-07 |
|
| 773-243
| 5 |
Chicago Zone 03-Kildare |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-09-24 |
|
| 773-243
| 6 |
Chicago Zone 03-Kildare |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2004-05-10 |
|
| 773-243
| 7 |
Chicago Zone 03-Kildare |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2004-03-19 |
|
| 773-243
| 8 |
Chicago Zone 03-Kildare |
IL |
SCBGILRRGT1 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
358 |
|
2025-09-24 |
|
| 773-243
| 9 |
Chicago Zone 03-Kildare |
IL |
ELGNILOTGT5 |
6529 T-MOBILE USA, INC. |
358 |
|
2004-05-10 |
|
| 773-244
| A |
Chicago Zone 04-Lakeview |
IL |
CHCGILLWDS0 |
9329 ILLINOIS BELL TEL CO |
358 |
|
|
|
| 773-245
| A |
Chicago Zone 08-Portsmouth |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
|
|
| 773-245
| 0 |
Chicago Zone 08-Portsmouth |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-08-14 |
|
| 773-245
| 1 |
Chicago Zone 08-Portsmouth |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2010-10-24 |
|
| 773-245
| 2 |
Chicago Zone 08-Portsmouth |
IL |
CHCGILGMDS7 |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
358 |
|
2010-11-27 |
|
| 773-245
| 3 |
Chicago Zone 08-Portsmouth |
IL |
CHCGILWBXDZ |
984E BANDWIDTH.COM CLEC, LLC - IL |
358 |
|
2011-06-13 |
|
| 773-245
| 4 |
Chicago Zone 08-Portsmouth |
IL |
CHCGILWBXWZ |
829J PAETEC ITEL, LLC |
358 |
|
2011-02-28 |
|
| 773-245
| 5 |
Chicago Zone 08-Portsmouth |
IL |
BNSVILDGDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
358 |
|
2010-10-16 |
|
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Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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