Recent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026
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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2020-07-02 | 442-322 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2020-07-02 | 509-450 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EPHRATA | WA |
| 2020-07-02 | 607-788 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | BINGHAMTON | NY |
| 2020-07-02 | 614-618 | 0–9 XXXall 10 · 3 holders which blocks → | NUSO, LLC | 478J | COLUMBUS | OH |
| 2020-07-02 | 667-977 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | SALISBURY | MD |
| 2020-07-02 | 669-345 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | GILROY | CA |
| 2020-07-02 | 669-356 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | LOS GATOS | CA |
| 2020-07-02 | 680-300 | 0XXX1XXX3XXX5XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | ANTWERP | NY |
| 2020-07-02 | 680-345 | 0XXX1XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | AMBER | NY |
| 2020-07-02 | 680-356 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | SYRACUSE | NY |
| 2020-07-02 | 680-400 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | CANTON | NY |
| 2020-07-02 | 680-500 | 0XXX1XXX3XXX5XXX6XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | FABIUS | NY |
| 2020-07-02 | 682-529 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | GRANBURY | TX |
| 2020-07-02 | 682-732 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | ALVARADO | TX |
| 2020-07-02 | 682-766 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | RENO | TX |
| 2020-07-02 | 707-770 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | FRFLD-SUIS | CA |
| 2020-07-02 | 707-848 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2020-07-02 | 707-866 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | VALLEJO | CA |
| 2020-07-02 | 707-977 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | NAPA | CA |
| 2020-07-02 | 716-755 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | BUFFALO | NY |
| 2020-07-02 | 737-345 | 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | GRANGER | TX |
| 2020-07-02 | 737-732 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | ROCKDALE | TX |
| 2020-07-02 | 743-234 | 0XXX4XXX5XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | SEAGROVE | NC |
| 2020-07-02 | 743-345 | 0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | STONEVILLE | NC |
| 2020-07-02 | 747-356 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | NORTHRIDGE | CA |
| 2020-07-02 | 747-977 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | NO HOLLYWD | CA |
| 2020-07-02 | 820-345 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | EL RIO | CA |
| 2020-07-02 | 850-996 | 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | WALNUTHILL | FL |
| 2020-07-02 | 870-719 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HARRISON | AR |
| 2020-07-02 | 904-640 | 0–9 XXXall 10 · 6 holders which blocks → | 1ST POINT COMMUNICATIONS, LLC | 489J | ST JOHNS | FL |
| 2020-07-02 | 912-733 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | COLLINS | GA |
| 2020-07-02 | 915-465 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | EL PASO | TX |
| 2020-07-02 | 936-946 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | REKLAW | TX |
| 2020-07-02 | 940-336 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | GAINESVL | TX |
| 2020-07-02 | 940-678 | 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | CHICO | TX |
| 2020-07-02 | 951-577 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | CORONA | CA |
| 2020-07-02 | 951-633 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | HEMT HEMT | CA |
| 2020-07-02 | 951-644 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | BANNING | CA |
| 2020-07-02 | 951-946 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | HEMT SNJC | CA |
| 2020-07-02 | 954-758 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | HOLLYWOOD | FL |
| 2020-07-02 | 979-766 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | E BERNARD | TX |
| 2020-07-02 | 989-346 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | MIO | MI |
| 2020-07-01 | 220-300 | 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | WILKESVL | OH |
| 2020-07-01 | 252-800 | 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | PINEYWOODS | NC |
| 2020-07-01 | 252-900 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | ROCKYMOUNT | NC |
| 2020-07-01 | 405-901 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | ANADARKO | OK |
| 2020-07-01 | 463-234 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2020-07-01 | 469-849 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX |
| 2020-07-01 | 505-413 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | 6573 | GALLUP | NM |
| 2020-07-01 | 505-430 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.