747 Area Code

Area Code Overview

Area code 747 is a geographic telephone area code in California that went into service on May 18, 2009. The geographic regions covered by this area code overlay has a population of approximately 4,710,048.

Overlay and Dialing Rules

  • Area Code: 747
  • State: California
  • Type: General Purpose Code
  • In Service Date: May 18, 2009
  • Overlay Complex: 747/818
  • Local Dialing Plan: This area requires you to dial 1 and the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 747

This area code is ranked 280th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 30th out of 39.

2,479,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 747

Total assigned 2,479,000
Wireless
1,087,000 assigned
43.85%
Wireline and VoIP
1,225,000 assigned
49.42%
Other / Unclassified
167,000 assigned
6.74%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 747

Estimated assigned wireless phone numbers: 1,087,000

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

T-Mobile 584,000 (53.73%)
AT&T Wireless 337,000 (31.00%)
Verizon Wireless 166,000 (15.27%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 747

Estimated assigned wireline and VoIP phone numbers: 1,225,000

Onvoy 629,000 (51.35%)
Bandwidth 231,000 (18.86%)
Spectrum 82,000 (6.69%)
Peerless Network 57,000 (4.65%)
TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 52,000 (4.24%)
Lumen 50,000 (4.08%)
Commio 30,000 (2.45%)
Telnyx 29,000 (2.37%)
Vonage 20,000 (1.63%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 10,000 (0.82%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 10,000 (0.82%)
AT&T 8,000 (0.65%)

Other / Unclassified Assigned Numbering in Area Code 747

Estimated assigned other or unclassified phone numbers: 167,000

TELEPORT COMMUNICATIONS AMERICA, LLC - CA 48,000 (28.74%)
FRACTEL, LLC 42,000 (25.15%)
SHELCOMM 20,000 (11.98%)
TON80 COMMUNICATIONS, LLC 16,000 (9.58%)
INTEGRATED PATH COMMUNICATIONS, LLC - CA 11,000 (6.59%)
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 11,000 (6.59%)
BARR TELL USA, LLC 7,000 (4.19%)
HD CARRIER LLC 5,000 (2.99%)
IP HORIZON LLC 2,000 (1.20%)
AIRESPRING, INC. 1,000 (0.60%)
BLUIP, INC. 1,000 (0.60%)
CONNECTTO COMMUNICATIONS, INC. - CA 1,000 (0.60%)

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 area code 747, not live customer counts.

Some providers may have assigned phone numbers tied to this area code 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.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm