Joliet, Illinois Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Joliet, Illinois

809,000

In Joliet, Illinois, wireless numbers account for 62.2% of assigned numbers, above the statewide average of 38.9%. Joliet's wireline and VoIP share is 16.5 percentage points lower than the statewide average. Compared with the state overall, Joliet has a more concentrated wireless assignment mix. Joliet is served by 2 area codes in an overlay area, meaning multiple area codes cover the same geographic region.

Area Codes Used by Joliet, Illinois

779 815

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

Total assigned 809,000

Wireless

503,000 assigned numbers

62.18%

Wireline and VoIP

266,000 assigned numbers

32.88%

Other / Unclassified

40,000 assigned numbers

4.94%

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

Estimated assigned wireless phone numbers: 503,000

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

T-Mobile 220,000 (43.74%)

AT&T Wireless 205,000 (40.76%)

Verizon Wireless 78,000 (15.51%)

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

Estimated assigned wireline and VoIP phone numbers: 266,000

AT&T 137,000 (51.50%)

Onvoy 27,000 (10.15%)

Bandwidth 23,000 (8.65%)

Lumen 21,000 (7.89%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 18,000 (6.77%)

Comcast Business 13,000 (4.89%)

Spectrum 9,000 (3.38%)

Commio 6,000 (2.26%)

Peerless Network 5,000 (1.88%)

PAETEC ITEL, LLC 3,000 (1.13%)

TERRA NOVA TELECOM INC. 2,000 (0.75%)

Telnyx 2,000 (0.75%)

Other / Unclassified Assigned Numbering in Joliet, Illinois

Estimated assigned other or unclassified phone numbers: 40,000

FIRST COMMUNICATIONS, LLC 19,000 (47.50%)

SPOK, INC. 10,000 (25.00%)

IP HORIZON LLC 3,000 (7.50%)

TELEPORT COMMUNICATIONS AMERICA, LLC - IL 3,000 (7.50%)

ACCESS ONE, INC. - IL 2,000 (5.00%)

CLEAR RATE COMMUNICATIONS, LLC 1,000 (2.50%)

FRACTEL, LLC 1,000 (2.50%)

STRATUS NETWORKS 1,000 (2.50%)

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 Joliet, 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.