California, United States
Pacific Time
10:23 PM
Area Code
341
State / Province
California
Country
United States
Time Zone
Pacific Time
Area code 341 covers 7 cities and communities across California, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+13415550100">+13415550100</a><a href="tel:+13415550199">+13415550199</a>Look up which exchange in California a specific 341 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
111 active prefixes in this area code, assigned as 1,165 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 1,165
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 341-200 | 0 | Hercules-Rodeo | Landline or VoIP | FRACTEL, LLC (965H) | SNJUCACL7MD | 722 | — | — |
| 341-200 | 1 | Hercules-Rodeo | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-200 | 2 | Hercules-Rodeo | Landline or VoIP | FRACTEL, LLC (965H) | SNJUCACL7MD | 722 | — | — |
| 341-200 | 3 | Hercules-Rodeo | Landline or VoIP | FRACTEL, LLC (965H) | SNJUCACL7MD | 722 | — | — |
| 341-200 | 4 | Hercules-Rodeo | Wireless | ONVOY SPECTRUM, LLC (624H) | OKLDCA03XKY | 722 | — | — |
| 341-200 | 5 | Hercules-Rodeo | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-200 | 6 | Hercules-Rodeo | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-200 | 7 | Hercules-Rodeo | Landline or VoIP | IP HORIZON LLC (515J) | SNFCCAMKX6Y | 722 | — | — |
| 341-200 | 8 | Hercules-Rodeo | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-200 | 9 | Hercules-Rodeo | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-200 | A | Hercules-Rodeo | Landline or VoIP | FRACTEL, LLC (965H) | SNJUCACL7MD | 722 | — | — |
| 341-201 | 0 | Fremont-Newark: Oliver DA | Landline or VoIP | TELNYX LLC (073H) | SNJUCACL3MD | 722 | — | — |
| 341-201 | 1 | Fremont-Newark: Oliver DA | Landline or VoIP | IP HORIZON LLC (515J) | SNFCCAMKX6Y | 722 | — | — |
| 341-201 | 2 | Fremont-Newark: Oliver DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-201 | 3 | Fremont-Newark: Oliver DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-201 | 4 | Fremont-Newark: Oliver DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-201 | 5 | Fremont-Newark: Oliver DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-201 | 6 | Fremont-Newark: Oliver DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-201 | 7 | Fremont-Newark: Oliver DA | Landline or VoIP | COMCAST PHONE OF CALIFORNIA, LLC (394L) | OKLDCA03XOY | 722 | — | — |
| 341-201 | 8 | Fremont-Newark: Oliver DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-201 | 9 | Fremont-Newark: Oliver DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-201 | A | Fremont-Newark: Oliver DA | Landline or VoIP | TELNYX LLC (073H) | SNJUCACL3MD | 722 | — | — |
| 341-202 | 0 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-202 | 1 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-202 | 2 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-202 | 3 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-202 | 4 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-202 | 5 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-202 | 6 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-202 | 7 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-202 | 8 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-202 | 9 | Oakland: Main-Piedmont DA | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - CA (7145) | SNRSCA01KMD | 722 | — | — |
| 341-202 | A | Oakland: Main-Piedmont DA | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - CA (7145) | SNRSCA01KMD | 722 | — | — |
| 341-203 | 0 | Richmond | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-203 | 1 | Richmond | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-203 | 2 | Richmond | Landline or VoIP | ONVOY, LLC - CA (649C) | — | 722 | — | — |
| 341-203 | 3 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-203 | 4 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-203 | 5 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-203 | 6 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-203 | 7 | Richmond | Landline or VoIP | COMMIO, LLC (939H) | SNJUCACL4MD | 722 | — | — |
| 341-203 | 8 | Richmond | Landline or VoIP | COMMIO, LLC (939H) | SNJUCACL4MD | 722 | — | — |
| 341-203 | 9 | Richmond | Landline or VoIP | COMMIO, LLC (939H) | SNJUCACL4MD | 722 | — | — |
| 341-203 | A | Richmond | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-204 | 0 | Fremont-Newark: Greenleaf DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-204 | 1 | Fremont-Newark: Greenleaf DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-204 | 2 | Fremont-Newark: Greenleaf DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-204 | 3 | Fremont-Newark: Greenleaf DA | Landline or VoIP | TELNYX LLC (073H) | SNFCCAMKX9X | 722 | — | — |
| 341-204 | 4 | Fremont-Newark: Greenleaf DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-204 | 5 | Fremont-Newark: Greenleaf DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-204 | 6 | Fremont-Newark: Greenleaf DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-204 | 7 | Fremont-Newark: Greenleaf DA | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-204 | 8 | Fremont-Newark: Greenleaf DA | Landline or VoIP | TELNYX LLC (073H) | OKLDCAEB0MD | 722 | — | — |
| 341-204 | 9 | Fremont-Newark: Greenleaf DA | Landline or VoIP | PEERLESS NETWORK OF CALIFORNIA, LLC - CA (373F) | SAN JOSE | 722 | — | — |
| 341-204 | A | Fremont-Newark: Greenleaf DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-205 | 0 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-205 | 1 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-205 | 2 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-205 | 3 | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-205 | 4 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-205 | 5 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-205 | 6 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-205 | 7 | Oakland: Main-Piedmont DA | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-205 | 8 | Oakland: Main-Piedmont DA | Landline or VoIP | TELNYX LLC (073H) | SNFCCAMKX9X | 722 | — | — |
| 341-205 | 9 | Oakland: Main-Piedmont DA | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - CA (7145) | SNRSCA01KMD | 722 | — | — |
| 341-205 | A | Oakland: Main-Piedmont DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 0 | Fremont-Newark: Main DA | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-206 | 1 | Fremont-Newark: Main DA | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-206 | 2 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 3 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 4 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 5 | Fremont-Newark: Main DA | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-206 | 6 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 7 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 8 | Fremont-Newark: Main DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-206 | 9 | Fremont-Newark: Main DA | Landline or VoIP | PEERLESS NETWORK OF CALIFORNIA, LLC - CA (373F) | SAN JOSE | 722 | — | — |
| 341-206 | A | Fremont-Newark: Main DA | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6006) | HYWRCAMCDMD | 722 | — | — |
| 341-207 | 0 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-207 | 1 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-207 | 2 | Richmond | Wireless | ONVOY SPECTRUM, LLC (624H) | SNFCCA21XNZ | 722 | — | — |
| 341-207 | 3 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-207 | 4 | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-207 | 5 | Richmond | Landline or VoIP | PEERLESS NETWORK OF CALIFORNIA, LLC - CA (373F) | SAN JOSE | 722 | — | — |
| 341-207 | 6 | Richmond | Wireless | ONVOY SPECTRUM, LLC (624H) | SNFCCA21XNZ | 722 | — | — |
| 341-207 | 7 | Richmond | Wireless | ONVOY SPECTRUM, LLC (624H) | SNFCCA21XNZ | 722 | — | — |
| 341-207 | 8 | Richmond | Wireless | T-MOBILE USA, INC. (6529) | OKLECAZV1MD | 722 | — | — |
| 341-207 | 9 | Richmond | Wireless | T-MOBILE USA, INC. (6529) | OKLECAZV1MD | 722 | — | — |
| 341-207 | A | Richmond | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
| 341-208 | 0 | Hayward | Wireless | ONVOY SPECTRUM, LLC (624H) | SNFCCA21XNZ | 722 | — | — |
| 341-208 | 1 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 2 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 3 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 4 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 5 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 6 | Hayward | Wireless | ONVOY SPECTRUM, LLC (624H) | SNFCCA21XNZ | 722 | — | — |
| 341-208 | 7 | Hayward | Landline or VoIP | ONVOY, LLC - CA (649C) | SAN FRANCISCO | 722 | — | — |
| 341-208 | 8 | Hayward | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-208 | 9 | Hayward | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-208 | A | Hayward | Wireless | NEW CINGULAR WIRELESS PCS, LLC (6010) | SANTA CLARA | 722 | — | — |
| 341-209 | 0 | Fremont-Newark: Oliver DA | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CA (981E) | SNFCCA21XUY | 722 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
111
Assignment Blocks
1,165
Rate Centers
13
Carriers of Record
26
| Type | Blocks | Share |
|---|---|---|
| Landline or VoIP | 715 | 61% |
| Wireless | 450 | 39% |
| Carrier | Blocks |
|---|---|
| ONVOY, LLC - CA | 368 |
| NEW CINGULAR WIRELESS PCS, LLC | 152 |
| T-MOBILE USA, INC. | 139 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 101 |
| BANDWIDTH.COM CLEC, LLC - CA | 93 |
| FRACTEL, LLC | 84 |
| ONVOY SPECTRUM, LLC | 53 |
| PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 24 |
| SONIC TELECOM, LLC - CA | 24 |
| TELNYX LLC | 22 |
| 16 other carriers | 105 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Fremont-Newark: Main DA | 16 | 168 |
| Hayward | 12 | 132 |
| Oakland: Berkeley DA | 12 | 119 |
| Oakland: Fruitvale DA | 10 | 106 |
| Richmond | 10 | 110 |
| El Sobrante-Pinole | 9 | 93 |
| Fremont-Newark: Greenleaf DA | 8 | 84 |
| Fremont-Newark: Oliver DA | 8 | 83 |
| Oakland: Main-Piedmont DA | 8 | 87 |
| Oakland: Alameda DA | 6 | 66 |
| Oakland: Trinidad DA | 6 | 63 |
| Crockett | 3 | 22 |
| Hercules-Rodeo | 3 | 32 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 341 is a North American Numbering Plan (NANP) telephone area code assigned to California, United States. It is one of 41 area codes serving California. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 341 is an active North American Numbering Plan (NANP) area code, currently assigned to California, United States. It is safe to answer or dial calls using this area code.
Area code 341 covers 7 cities and communities in California, including Crockett, El Sobrante-Pinole, Fremont-Newark, Hayward, Hercules-Rodeo, and 2 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 341 area code observe Pacific Time (IANA timezone: America/Los_Angeles). Pacific Time is UTC−8 in winter (PST) and UTC−7 in summer (PDT). When placing a call to a 341 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within California, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 341 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 341 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 341 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +13415550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.