NumberResearchRecent prefix assignments
349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
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, last 30 days
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 |
|---|---|---|---|---|---|---|
| 2022-01-25 | 959-995 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WILLIMNTIC | CT |
| 2022-01-25 | 984-687 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | CARY | NC |
| 2022-01-25 | 984-742 | 0–9 XXXall 10 · 7 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | RAL DUR AP | NC |
| 2022-01-25 | 986-482 | 6XXX which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LOWMAN | ID |
| 2022-01-25 | 986-896 | 8XXX which blocks → | TWILIO INTERNATIONAL, INC. | 506J | COERDALENE | ID |
| 2022-01-25 | 989-515 | 0XXX1XXX2XXX4XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | ONAWAY | MI |
| 2022-01-24 | 213-651 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 01 | CA |
| 2022-01-24 | 225-477 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | BATONROUGE | LA |
| 2022-01-24 | 236-201 | not yet reported which blocks → | Iristel Inc. | 154E | Midway | — |
| 2022-01-24 | 236-462 | not yet reported which blocks → | Iristel Inc. | 154E | Nanaimo | — |
| 2022-01-24 | 239-380 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | NAPLES | FL |
| 2022-01-24 | 239-662 | 0–9 XXXall 10 · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NO NAPLES | FL |
| 2022-01-24 | 239-663 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BONITA SPG | FL |
| 2022-01-24 | 239-746 | 0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | EVERGLADES | FL |
| 2022-01-24 | 301-597 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WALDORF | MD |
| 2022-01-24 | 326-227 | 2XXX3XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | FLTCHELENA | OH |
| 2022-01-24 | 365-744 | not yet reported which blocks → | Iristel Inc. | 154E | Milton | — |
| 2022-01-24 | 438-908 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2022-01-24 | 448-895 | 0XXX1XXX8XXX · 2 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | PANAMACITY | FL |
| 2022-01-24 | 475-382 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | BRANFORD | CT |
| 2022-01-24 | 581-474 | not yet reported which blocks → | Iristel Inc. | 154E | Donnacona | — |
| 2022-01-24 | 585-608 | 0XXX2XXX7XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | ANGELICA | NY |
| 2022-01-24 | 585-609 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WELLSVILLE | NY |
| 2022-01-24 | 619-848 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DEL MAR | CA |
| 2022-01-24 | 639-307 | not yet reported which blocks → | Iristel Inc. | 154E | Lanigan | — |
| 2022-01-24 | 754-284 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | HOLLYWOOD | FL |
| 2022-01-24 | 806-846 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | LUBBOCK | TX |
| 2022-01-24 | 828-661 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | HICKORY | NC |
| 2022-01-24 | 838-723 | 0–9 XXXall 10 · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SCHENCTADY | NY |
| 2022-01-24 | 854-894 | 0–9 XXXall 10 · 3 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | MYRTLE BCH | SC |
| 2022-01-24 | 862-393 | 0XXX1XXX2XXX3XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NJ | 118F | MT FREEDOM | NJ |
| 2022-01-24 | 867-288 | not yet reported which blocks → | Bell Mobility | 6574 | Fort Simpson | — |
| 2022-01-24 | 873-702 | not yet reported which blocks → | Iristel Inc. | 154E | Drummondville | — |
| 2022-01-24 | 873-774 | not yet reported which blocks → | Iristel Inc. | 154E | Rouyn-Noranda | — |
| 2022-01-24 | 908-554 | 0XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | 7142 | LEBANON | NJ |
| 2022-01-24 | 908-556 | 0XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CALIFON | NJ |
| 2022-01-24 | 945-242 | 0–9 XXXall 10 · 7 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | FORNEY | TX |
| 2022-01-24 | 951-607 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LAKEVIEWNU | CA |
| 2022-01-24 | 959-936 | 0XXX4XXX5XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LYME | CT |
| 2022-01-21 | 223-297 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | PALMYRA | PA |
| 2022-01-21 | 231-402 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLCV - MI | 543C | MUSKEGON | MI |
| 2022-01-21 | 236-309 | not yet reported which blocks → | Iristel Inc. | 154E | Fort St. John | — |
| 2022-01-21 | 272-663 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MOSCOW | PA |
| 2022-01-21 | 272-664 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | MINERSVL | PA |
| 2022-01-21 | 423-853 | 0–9 XXXall 10 · 3 holders which blocks → | TWILIO INTERNATIONAL, INC. | 506J | JOHNSON CY | TN |
| 2022-01-21 | 424-544 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | EL SEGUNDO | CA |
| 2022-01-21 | 425-541 | 0–9 XXXall 10 · 3 holders which blocks → | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | EVERETT | WA |
| 2022-01-21 | 438-907 | not yet reported which blocks → | Iristel Inc. | 154E | Montreal | — |
| 2022-01-21 | 470-924 | 0–9 XXXall 10 · 6 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | 8392 | ATLANTA NW | GA |
| 2022-01-21 | 616-372 | 0XXX2XXX3XXX4XXX6XXX7XXX · 3 holders which blocks → | ONVOY, LLCV - MI | 543C | COOPERSVL | MI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.