NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, all time — NPA 760
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 760-218 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PALM SPG | CA |
| — | 760-219 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PALM SPG | CA |
| — | 760-220 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VICTORVL | CA |
| — | 760-221 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VICTORVL | CA |
| — | 760-223 | 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LKISABELLA | CA |
| — | 760-224 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| — | 760-225 | not yet reported which blocks → | 33 WIRELESS INC. | 6967 | ESCONDIDO | CA |
| — | 760-226 | not yet reported which blocks → | SPOK, INC. | 6630 | VICTORVL | CA |
| — | 760-227 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRONTIER CALIFORNIA INC. | 2319 | DESERT CTR | CA |
| — | 760-228 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 2319 | YUCCA VLY | CA |
| — | 760-230 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ENCINITAS | CA |
| — | 760-231 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMCAST PHONE OF CALIFORNIA, LLC | 394L | OCSD OCSD | CA |
| — | 760-232 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PINE CREEK | CA |
| — | 760-233 | not yet reported which blocks → | PACIFIC BELL | 9740 | ESCONDIDO | CA |
| — | 760-234 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | EL CENTRO | CA |
| — | 760-235 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EL CENTRO | CA |
| — | 760-236 | not yet reported which blocks → | NORTH COUNTY COMMUNICATION CORPORATION - CA | 7894 | FALLBROOK | CA |
| — | 760-237 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | COMCAST PHONE OF CALIFORNIA, LLC | 394L | OCSD PDTN | CA |
| — | 760-240 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VTVL APVY | CA |
| — | 760-241 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA |
| — | 760-242 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VTVL APVY | CA |
| — | 760-243 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA |
| — | 760-244 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VTVL HSPR | CA |
| — | 760-245 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA |
| — | 760-246 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA |
| — | 760-247 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VTVL APVY | CA |
| — | 760-248 | 0XXX3XXX4XXX8XXX · 4 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | LUCERNEVLY | CA |
| — | 760-249 | 0XXX2XXX7XXX8XXX9XXX · 5 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | WRIGHTWOOD | CA |
| — | 760-250 | none assigned yet which blocks → | METROPCS NETWORKS, LLC | 899D | PALM SPG | CA |
| — | 760-251 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 2319 | DSERTHTSPG | CA |
| — | 760-252 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA |
| — | 760-253 | 0XXX1XXX6XXX8XXX9XXX · 3 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | LENWOOD | CA |
| — | 760-254 | 0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | BRSW YERM | CA |
| — | 760-255 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA |
| — | 760-256 | not yet reported which blocks → | FRONTIER CALIFORNIA INC. | 4420 | BARSTOW | CA |
| — | 760-257 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | NEWBERRY | CA |
| — | 760-258 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BISHOP | CA |
| — | 760-259 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - CA | 649C | EL CENTRO | CA |
| — | 760-260 | 4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | IP HORIZON LLC | 515J | JULIAN | CA |
| — | 760-261 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 2 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA |
| — | 760-262 | 5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - CA | 649C | INDIO | CA |
| — | 760-263 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BIG PINE | CA |
| — | 760-264 | 0XXX1XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LONE PINE | CA |
| — | 760-266 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SHOSHONE | CA |
| — | 760-269 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRONTIER CALIFORNIA INC. | 4420 | VICTORVL | CA |
| — | 760-273 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EARP | CA |
| — | 760-274 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA |
| — | 760-275 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | PALM SPG | CA |
| — | 760-276 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PARKER DAM | CA |
| — | 760-277 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | OCSD OCSD | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.