Recent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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 |
|---|---|---|---|---|---|---|
| 2020-07-14 | 224-346 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | LAKE VILLA | IL |
| 2020-07-14 | 224-689 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | ELGIN | IL |
| 2020-07-14 | 224-744 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | FRANKLINPK | IL |
| 2020-07-14 | 224-899 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | WHEELING | IL |
| 2020-07-14 | 224-922 | 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | GLENCOE | IL |
| 2020-07-14 | 224-955 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | ROSELLE | IL |
| 2020-07-14 | 253-900 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | GIG HARBOR | WA |
| 2020-07-14 | 309-709 | 1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → | STRATUS NETWORKS | 495J | MANITO | IL |
| 2020-07-14 | 320-946 | 0XXX3XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | SACREDHERT | MN |
| 2020-07-14 | 331-867 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | YORKVILLE | IL |
| 2020-07-14 | 331-946 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | GLEN ELLYN | IL |
| 2020-07-14 | 425-666 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | EVERETT | WA |
| 2020-07-14 | 425-900 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | BELLEVUE | WA |
| 2020-07-14 | 430-275 | 0–9 XXXall 10 · 2 holders which blocks → | E. RITTER COMMUNICATIONS, LLC | 128L | TEXARKANA | TX |
| 2020-07-14 | 458-666 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | BEND | OR |
| 2020-07-14 | 480-933 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | PHOENIX | AZ |
| 2020-07-14 | 505-416 | 0–9 XXXall 10 · 6 holders which blocks → | METROPCS, INC. | 5562 | SANTA FE | NM |
| 2020-07-14 | 509-816 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | SPOKANE | WA |
| 2020-07-14 | 539-529 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | BARTLESVL | OK |
| 2020-07-14 | 539-577 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | MIAMI | OK |
| 2020-07-14 | 540-844 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | DAHLGREN | VA |
| 2020-07-14 | 571-470 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN19 | VA |
| 2020-07-14 | 602-755 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | PHOENIX | AZ |
| 2020-07-14 | 623-400 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | PHOENIX | AZ |
| 2020-07-14 | 779-356 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | CRYSTAL LK | IL |
| 2020-07-14 | 779-599 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | PAW PAW | IL |
| 2020-07-14 | 779-766 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | DEPUE | IL |
| 2020-07-14 | 779-877 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | VERONA | IL |
| 2020-07-14 | 779-899 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | LISBON | IL |
| 2020-07-14 | 779-946 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | GRANVILLE | IL |
| 2020-07-14 | 779-977 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | HARVARD | IL |
| 2020-07-14 | 872-362 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN05 | IL |
| 2020-07-14 | 872-758 | 0–9 XXXall 10 · 8 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN10 | IL |
| 2020-07-14 | 872-766 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | CHICGOZN01 | IL |
| 2020-07-14 | 925-410 | 0–9 XXXwhole prefix which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PLEASANTON | CA |
| 2020-07-14 | 928-385 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | KINGMAN | AZ |
| 2020-07-14 | 971-465 | 0–9 XXXall 10 · 9 holders which blocks → | FRACTEL, LLC | 965H | DALLAS | OR |
| 2020-07-14 | 971-758 | 0XXX1XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | CARLTON | OR |
| 2020-07-14 | 971-946 | 3XXX4XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | ST PAUL | OR |
| 2020-07-13 | 206-635 | 0–9 XXXall 10 · 6 holders which blocks → | CSC WIRELESS, LLC | 425J | SEATTLE | WA |
| 2020-07-13 | 224-722 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | ELK GROVE | IL |
| 2020-07-13 | 251-465 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | MOBILE | AL |
| 2020-07-13 | 251-758 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | MT VERNON | AL |
| 2020-07-13 | 251-766 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | JACKSON | AL |
| 2020-07-13 | 251-842 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | PETERMAN | AL |
| 2020-07-13 | 251-877 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | FOWL RIVER | AL |
| 2020-07-13 | 276-788 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | MARTINSVL | VA |
| 2020-07-13 | 334-822 | 1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | BRANTLEY | AL |
| 2020-07-13 | 334-829 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | OAKLAND | AL |
| 2020-07-13 | 334-867 | 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | FRACTEL, LLC | 965H | GENEVA | AL |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.