Chula Vista, California Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Chula Vista, California

1,519,000

In Chula Vista, California, wireless numbers account for 59.4% of assigned numbers, above the statewide average of 42.6%. Chula Vista's wireline and VoIP share is 12.4 percentage points lower than the statewide average. Compared with the state overall, Chula Vista has a more concentrated wireless assignment mix. Chula Vista is served by 2 area codes in an overlay area, meaning multiple area codes cover the same geographic region.

Area Codes Used by Chula Vista, California

619 858

Estimated Service-Type Mix of Assigned Phone Numbers in Chula Vista, California

Total assigned 1,519,000

Wireless

902,000 assigned numbers

59.38%

Wireline and VoIP

580,000 assigned numbers

38.18%

Other / Unclassified

37,000 assigned numbers

2.44%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Chula Vista, California

Estimated assigned wireless phone numbers: 902,000

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

T-Mobile 501,000 (55.54%)

AT&T Wireless 249,000 (27.61%)

Verizon Wireless 152,000 (16.85%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Chula Vista, California

Estimated assigned wireline and VoIP phone numbers: 580,000

AT&T 229,000 (39.48%)

Onvoy 137,000 (23.62%)

Bandwidth 75,000 (12.93%)

Comcast Business 44,000 (7.59%)

Lumen 28,000 (4.83%)

Spectrum 19,000 (3.28%)

Telnyx 11,000 (1.90%)

Vonage 10,000 (1.72%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 8,000 (1.38%)

Peerless Network 7,000 (1.21%)

Commio 5,000 (0.86%)

PAETEC ITEL, LLC 5,000 (0.86%)

Other / Unclassified Assigned Numbering in Chula Vista, California

Estimated assigned other or unclassified phone numbers: 37,000

AMERICAN MESSAGING SERVICES, LLC 20,000 (54.05%)

SPOK, INC. 10,000 (27.03%)

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 5,000 (13.51%)

FRACTEL, LLC 1,000 (2.70%)

TON80 COMMUNICATIONS, LLC 1,000 (2.70%)

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 Chula Vista, California, 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.