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 |
|---|---|---|---|---|---|---|
| 2021-01-15 | 425-364 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOTHELL | WA |
| 2021-01-15 | 438-260 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Montreal | — |
| 2021-01-15 | 470-910 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA | GA |
| 2021-01-15 | 478-346 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | WRIGHTSVL | GA |
| 2021-01-15 | 478-910 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - GA | 067D | MACON | GA |
| 2021-01-15 | 479-412 | 0–9 XXXall 10 · 6 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERTON | AR |
| 2021-01-15 | 502-406 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - KY | 987E | NEWLIBERTY | KY |
| 2021-01-15 | 571-644 | 0–9 XXXwhole prefix which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ENGLESIDE | VA |
| 2021-01-15 | 579-418 | not yet reported which blocks → | Fibernetics Corporation | 464D | Napierville | — |
| 2021-01-15 | 579-419 | not yet reported which blocks → | Fibernetics Corporation | 464D | St-Blaise | — |
| 2021-01-15 | 605-736 | 0–9 XXXall 10 · 5 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BROOKINGS | SD |
| 2021-01-15 | 681-267 | 0XXX2XXX9XXX · 3 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | MOOREFIELD | WV |
| 2021-01-15 | 681-274 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - WV | 080F | SPENCER | WV |
| 2021-01-15 | 712-561 | 0–9 XXXall 10 · 3 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | COUNCILBLF | IA |
| 2021-01-15 | 727-899 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | CLEARWATER | FL |
| 2021-01-15 | 727-966 | 0–9 XXXall 10 · 7 holders which blocks → | FRACTEL, LLC | 965H | TARPON SPG | FL |
| 2021-01-15 | 762-930 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - GA | 067D | AUGUSTA | GA |
| 2021-01-15 | 786-966 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | NORTH DADE | FL |
| 2021-01-15 | 863-887 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | BOWLNGGREN | FL |
| 2021-01-15 | 904-659 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - FL | 937C | JACKSONVL | FL |
| 2021-01-15 | 912-940 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | SAVANNAH | GA |
| 2021-01-15 | 971-390 | 0XXX1XXX2XXX4XXX5XXX · 4 holders which blocks → | ONVOY, LLC - OR | 750E | JEWELL | OR |
| 2021-01-15 | 971-391 | 2XXX5XXX7XXX · 2 holders which blocks → | ONVOY, LLC - OR | 750E | ROCKAWAY | OR |
| 2021-01-14 | 224-369 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | WAUKEGAN | IL |
| 2021-01-14 | 229-497 | 0XXX1XXX2XXX3XXX5XXX7XXX · 3 holders which blocks → | ONVOY, LLC - GA | 067D | PARROTT | GA |
| 2021-01-14 | 229-517 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → | ONVOY, LLC - GA | 067D | PINEVIEW | GA |
| 2021-01-14 | 229-527 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - GA | 067D | RHINE | GA |
| 2021-01-14 | 229-547 | 0XXX1XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → | ONVOY, LLC - GA | 067D | SASSER | GA |
| 2021-01-14 | 240-571 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL238 | MD |
| 2021-01-14 | 331-268 | 0XXX1XXX2XXX3XXX4XXX9XXX · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | SUGARGROVE | IL |
| 2021-01-14 | 361-567 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | BRUNI | TX |
| 2021-01-14 | 361-732 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | ARANSSPASS | TX |
| 2021-01-14 | 361-789 | 3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | PT COMFORT | TX |
| 2021-01-14 | 361-842 | 5XXX which blocks → | FRACTEL, LLC | 965H | ARMSTRONG | TX |
| 2021-01-14 | 361-899 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | SAN DIEGO | TX |
| 2021-01-14 | 470-752 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | ZEBULON | GA |
| 2021-01-14 | 561-878 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - FL | 937C | BELLEGLADE | FL |
| 2021-01-14 | 571-503 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - VA | 138E | OCCOQUAN | VA |
| 2021-01-14 | 571-513 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DALE CITY | VA |
| 2021-01-14 | 571-561 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - VA | 138E | HAYMARKET | VA |
| 2021-01-14 | 574-369 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | ELKHART | IN |
| 2021-01-14 | 579-412 | not yet reported which blocks → | Fibernetics Corporation | 464D | Bedford | — |
| 2021-01-14 | 579-413 | not yet reported which blocks → | Fibernetics Corporation | 464D | Clarenceville | — |
| 2021-01-14 | 579-414 | not yet reported which blocks → | Fibernetics Corporation | 464D | Farnham | — |
| 2021-01-14 | 579-415 | not yet reported which blocks → | Fibernetics Corporation | 464D | Hemmingford | — |
| 2021-01-14 | 579-416 | not yet reported which blocks → | Fibernetics Corporation | 464D | Henryville | — |
| 2021-01-14 | 579-417 | not yet reported which blocks → | Fibernetics Corporation | 464D | Lacolle | — |
| 2021-01-14 | 708-696 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | ORLAND | IL |
| 2021-01-14 | 720-803 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2021-01-14 | 740-789 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | PATASKALA | OH |
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.