NumberResearchRecent prefix assignments
341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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
Sep 2026
Aug 2026
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May 2026
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Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-05-25 | 431-948 | not yet reported which blocks → | Bell Mobility | 6574 | Winnipeg | — |
| 2022-05-25 | 474-351 | not yet reported which blocks → | Bell Mobility | 6574 | Saskatoon | — |
| 2022-05-25 | 506-264 | not yet reported which blocks → | Distributel | 081E | Sussex | — |
| 2022-05-25 | 506-373 | not yet reported which blocks → | Distributel | 081E | St. Stephen | — |
| 2022-05-25 | 506-374 | not yet reported which blocks → | Distributel | 081E | St. George | — |
| 2022-05-25 | 506-448 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Moncton | — |
| 2022-05-25 | 506-527 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Bathurst | — |
| 2022-05-25 | 782-496 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Sydney | — |
| 2022-05-25 | 782-542 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Summerside | — |
| 2022-05-25 | 806-484 | 0–9 XXXall 10 · 5 holders which blocks → | TERRA NOVA TELECOM INC. | 145J | AMARILLO | TX |
| 2022-05-25 | 862-880 | 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | COMMIO, LLC | 939H | NUTLEY | NJ |
| 2022-05-25 | 945-259 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | WAXAHACHIE | TX |
| 2022-05-24 | 223-316 | 0–9 XXXall 10 · 4 holders which blocks → | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | LEBANON | PA |
| 2022-05-24 | 248-510 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | SOUTHFIELD | MI |
| 2022-05-24 | 279-688 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | ISLETON | CA |
| 2022-05-24 | 279-966 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | LINCOLN | CA |
| 2022-05-24 | 332-963 | 0–9 XXXwhole prefix which blocks → | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 2022-05-24 | 346-556 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | HOUSTON | TX |
| 2022-05-24 | 346-557 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | HSTNSUBURB | TX |
| 2022-05-24 | 361-276 | 0XXX5XXX7XXX8XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CALALLEN | TX |
| 2022-05-24 | 470-993 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | SOCIALCRCL | GA |
| 2022-05-24 | 506-318 | not yet reported which blocks → | Distributel | 081E | Saint John | — |
| 2022-05-24 | 506-319 | not yet reported which blocks → | Distributel | 081E | Rothesay | — |
| 2022-05-24 | 506-408 | not yet reported which blocks → | Distributel | 081E | St. Andrews | — |
| 2022-05-24 | 506-412 | not yet reported which blocks → | Distributel | 081E | Salisbury | — |
| 2022-05-24 | 506-413 | not yet reported which blocks → | Distributel | 081E | Springfield | — |
| 2022-05-24 | 512-702 | 0–9 XXXall 10 · 2 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | AUSTIN | TX |
| 2022-05-24 | 512-880 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BASTROP | TX |
| 2022-05-24 | 626-776 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | ALHAMBRA | CA |
| 2022-05-24 | 628-386 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | CORTEMADRA | CA |
| 2022-05-24 | 681-332 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV | 6394 | FAIRMONT | WV |
| 2022-05-24 | 726-225 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SANANTONIO | TX |
| 2022-05-24 | 804-738 | 0–9 XXXall 10 · 2 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | MECHANCSVL | VA |
| 2022-05-24 | 830-235 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SEGUIN | TX |
| 2022-05-24 | 945-256 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ALLEN | TX |
| 2022-05-24 | 945-258 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | DALLAS | TX |
| 2022-05-23 | 206-704 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - WA | 483E | SEATTLE | WA |
| 2022-05-23 | 509-206 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | CLARKSTON | WA |
| 2022-05-23 | 586-318 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ROMEO | MI |
| 2022-05-23 | 606-245 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | CORBIN | KY |
| 2022-05-23 | 726-465 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | SANANTONIO | TX |
| 2022-05-20 | 220-228 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | PATASKALA | OH |
| 2022-05-20 | 240-814 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2022-05-20 | 317-533 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | INDIANAPLS | IN |
| 2022-05-20 | 405-967 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OKLA CITY | OK |
| 2022-05-20 | 505-513 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FARMINGTON | NM |
| 2022-05-20 | 506-376 | not yet reported which blocks → | Distributel | 081E | Hampton | — |
| 2022-05-20 | 506-398 | not yet reported which blocks → | Distributel | 081E | Grand Manan | — |
| 2022-05-20 | 506-402 | not yet reported which blocks → | Distributel | 081E | Petitcodiac | — |
| 2022-05-20 | 506-403 | not yet reported which blocks → | Distributel | 081E | Grand Bay-Westfield | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.