West Chicago, Illinois Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in West Chicago, Illinois

235,000

In West Chicago, Illinois, wireless numbers account for 52.8% of assigned numbers, above the statewide average of 38.9%. West Chicago's wireline and VoIP share is 8.1 percentage points lower than the statewide average. Compared with the state overall, West Chicago has a more concentrated wireless assignment mix. West Chicago is served by 2 area codes in an overlay area, meaning multiple area codes cover the same geographic region.

Area Codes Used by West Chicago, Illinois

331 630

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

Total assigned 235,000

Wireless

124,000 assigned numbers

52.77%

Wireline and VoIP

97,000 assigned numbers

41.28%

Other / Unclassified

14,000 assigned numbers

5.96%

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

Estimated assigned wireless phone numbers: 124,000

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

AT&T Wireless 111,000 (89.52%)

T-Mobile 13,000 (10.48%)

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

Estimated assigned wireline and VoIP phone numbers: 97,000

AT&T 31,000 (31.96%)

Onvoy 21,000 (21.65%)

Bandwidth 11,000 (11.34%)

Lumen 10,000 (10.31%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 6,000 (6.19%)

Spectrum 5,000 (5.15%)

Comcast Business 3,000 (3.09%)

PAETEC ITEL, LLC 3,000 (3.09%)

Peerless Network 3,000 (3.09%)

RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 2,000 (2.06%)

TERRA NOVA TELECOM INC. 1,000 (1.03%)

Telnyx 1,000 (1.03%)

Other / Unclassified Assigned Numbering in West Chicago, Illinois

Estimated assigned other or unclassified phone numbers: 14,000

FIRST COMMUNICATIONS, LLC 8,000 (57.14%)

ACCESS ONE, INC. - IL 1,000 (7.14%)

CLEAR RATE COMMUNICATIONS, LLC 1,000 (7.14%)

HD CARRIER LLC 1,000 (7.14%)

IP HORIZON LLC 1,000 (7.14%)

STRATUS NETWORKS 1,000 (7.14%)

TON80 COMMUNICATIONS, LLC 1,000 (7.14%)

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 West Chicago, 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.