Rockford, Illinois Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Rockford, Illinois

1,117,000

In Rockford, Illinois, wireless numbers account for 51.2% of assigned numbers, above the statewide average of 38.9%. Rockford's wireline and VoIP share is 5.0 percentage points lower than the statewide average. Compared with the state overall, Rockford has a more concentrated wireless assignment mix. Rockford is served by 2 area codes in an overlay area, meaning multiple area codes cover the same geographic region.

Area Codes Used by Rockford, Illinois

779 815

Estimated Service-Type Mix of Assigned Phone Numbers in Rockford, Illinois

Total assigned 1,117,000

Wireless

572,000 assigned numbers

51.21%

Wireline and VoIP

496,000 assigned numbers

44.40%

Other / Unclassified

49,000 assigned numbers

4.39%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Rockford, Illinois

Estimated assigned wireless phone numbers: 572,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

Verizon Wireless 192,000 (33.57%)

T-Mobile 156,000 (27.27%)

UScellular 130,000 (22.73%)

AT&T Wireless 93,000 (16.26%)

Optimum Mobile 1,000 (0.17%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Rockford, Illinois

Estimated assigned wireline and VoIP phone numbers: 496,000

AT&T 297,000 (59.88%)

Onvoy 75,000 (15.12%)

PAETEC ITEL, LLC 38,000 (7.66%)

Lumen 35,000 (7.06%)

Comcast Business 23,000 (4.64%)

TERRA NOVA TELECOM INC. 7,000 (1.41%)

Commio 4,000 (0.81%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 3,000 (0.60%)

NUSO 3,000 (0.60%)

Peerless Network 2,000 (0.40%)

Telnyx 2,000 (0.40%)

Bandwidth 1,000 (0.20%)

Other / Unclassified Assigned Numbering in Rockford, Illinois

Estimated assigned other or unclassified phone numbers: 49,000

SPOK, INC. 20,000 (40.82%)

AMERICAN MESSAGING SERVICES, LLC 10,000 (20.41%)

TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7,000 (14.29%)

HD CARRIER LLC 4,000 (8.16%)

FRACTEL, LLC 2,000 (4.08%)

AERO NORTH COMMUNICATIONS, INC. - IL 1,000 (2.04%)

CALLWORKS CORPORATION 1,000 (2.04%)

EXIANT COMMUNICATIONS LLC 1,000 (2.04%)

IP HORIZON LLC 1,000 (2.04%)

STRATUS NETWORKS 1,000 (2.04%)

WAVENATION, LLC 1,000 (2.04%)

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with Rockford, Illinois, not live customer counts.

Some providers may have assigned phone numbers tied to this locality even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.