RNCHOBRNDO prefixes in area code 858
NANPA records 41 assigned NXX blocks to rate center RNCHOBRNDO in area code 858, 7.3% of the 564 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 15 holders hold those blocks, the largest being PACIFIC BELL (15), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (4), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3). The earliest assignment on record here is 2001-09-13 and the most recent 2025-01-13. 27 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 858-207 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 858-217 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 858-234 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 858-304 | AT&T AT&T - LOCAL | – | yes | yes |
| 858-312 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | – | yes | yes |
| 858-376 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 858-385 | AT&T PACIFIC BELL | – | no | yes |
| 858-421 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2025-01-13 | yes | yes |
| 858-432 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 858-451 | AT&T PACIFIC BELL | – | yes | yes |
| 858-472 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2001-09-13 | yes | yes |
| 858-485 | AT&T PACIFIC BELL | – | no | yes |
| 858-487 | AT&T PACIFIC BELL | – | no | yes |
| 858-521 | AT&T PACIFIC BELL | – | yes | yes |
| 858-524 | AT&T PACIFIC BELL | – | yes | yes |
| 858-544 | FRACTEL, LLC | 2021-09-24 | yes | yes |
| 858-588 | FRACTEL, LLC | 2021-01-13 | yes | yes |
| 858-592 | AT&T PACIFIC BELL | – | no | yes |
| 858-605 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 858-613 | AT&T PACIFIC BELL | – | no | yes |
| 858-618 | AT&T PACIFIC BELL | – | no | yes |
| 858-649 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 858-655 | AT&T PACIFIC BELL | – | no | yes |
| 858-673 | AT&T PACIFIC BELL | – | no | yes |
| 858-674 | AT&T PACIFIC BELL | – | no | yes |
| 858-675 | AT&T PACIFIC BELL | – | no | yes |
| 858-676 | AT&T PACIFIC BELL | – | no | yes |
| 858-683 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 858-705 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 858-716 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 858-753 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 858-774 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 858-776 | T-Mobile T-MOBILE USA, INC. | 2002-08-30 | yes | yes |
| 858-798 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 858-815 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 858-879 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 858-924 | AT&T PACIFIC BELL | – | yes | yes |
| 858-927 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 858-942 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | no | yes |
| 858-943 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 858-946 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| PACIFIC BELL | AT&T | 15 | 36.6% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 4 | 9.8% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 7.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 3 | 7.3% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 3 | 7.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 4.9% |
| FRACTEL, LLC | – | 2 | 4.9% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 2 | 4.9% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 1 | 2.4% |
| AT&T - LOCAL | AT&T | 1 | 2.4% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 2.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 2.4% |
| PAETEC ITEL, LLC | Windstream | 1 | 2.4% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 2.4% |
| ONVOY, LLC - CA | Onvoy | 1 | 2.4% |
Frequently asked
Which prefixes belong to RNCHOBRNDO in area code 858?
41 blocks: 207, 217, 234, 304, 312, 376, 385, 421, 432, 451, 472, 485 and 29 more, all listed in the table above.
Which carriers have numbers in RNCHOBRNDO?
PACIFIC BELL (15 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (4 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is RNCHOBRNDO a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.