NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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
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Dec 2025
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Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-06-06 | 639-579 | not yet reported which blocks → | Bell Mobility | 6574 | Carnduff | — |
| 2017-06-06 | 709-706 | not yet reported which blocks → | Iristel Inc. | 154E | St. John's | — |
| 2017-06-06 | 813-437 | 0–9 XXXall 10 · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | TAMPACEN | FL |
| 2017-06-06 | 825-254 | not yet reported which blocks → | Iristel Inc. | 154E | Peace River | — |
| 2017-06-06 | 825-255 | not yet reported which blocks → | Iristel Inc. | 154E | Peace River | — |
| 2017-06-06 | 859-397 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | LEXINGTON | KY |
| 2017-06-06 | 872-870 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC | 224C | CHICGOZN09 | IL |
| 2017-06-06 | 873-471 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lebel-sur-Quevillon | — |
| 2017-06-06 | 902-710 | not yet reported which blocks → | Iristel Inc. | 154E | Canso | — |
| 2017-06-05 | 267-831 | 0–9 XXXall 10 · 6 holders which blocks → | TELNYX LLC | 073H | PHLDLPHZN1 | PA |
| 2017-06-05 | 272-207 | 0–9 XXXall 10 · 6 holders which blocks → | TELNYX LLC | 073H | SCRANTON | PA |
| 2017-06-05 | 352-421 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | OCALA | FL |
| 2017-06-05 | 412-588 | 0–9 XXXall 10 · 4 holders which blocks → | TELNYX LLC | 073H | PTTSBGZON1 | PA |
| 2017-06-05 | 657-209 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SILVERADO | CA |
| 2017-06-05 | 717-934 | 0–9 XXXall 10 · 5 holders which blocks → | TELNYX LLC | 073H | HARISBGZN1 | PA |
| 2017-06-05 | 763-285 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | TWINCITIES | MN |
| 2017-06-05 | 804-904 | 0–9 XXXall 10 · 4 holders which blocks → | COMMIO, LLC | 939H | RICHMOND | VA |
| 2017-06-05 | 814-552 | 0XXX1XXX2XXX · 3 holders which blocks → | TELNYX LLC | 073H | ALTOONA | PA |
| 2017-06-05 | 980-866 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | CONCORD | NC |
| 2017-06-02 | 236-362 | not yet reported which blocks → | Iristel Inc. | 154E | Nanaimo | — |
| 2017-06-02 | 249-251 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brechin | — |
| 2017-06-02 | 249-252 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cookstown | — |
| 2017-06-02 | 249-253 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Creemore | — |
| 2017-06-02 | 249-254 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Elmvale | — |
| 2017-06-02 | 249-255 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lafontaine | — |
| 2017-06-02 | 249-256 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Penetanguishene | — |
| 2017-06-02 | 249-257 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port McNicoll | — |
| 2017-06-02 | 249-258 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Severn Bridge | — |
| 2017-06-02 | 249-259 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Stroud | — |
| 2017-06-02 | 249-261 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wasaga Beach | — |
| 2017-06-02 | 249-262 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Waubaushene | — |
| 2017-06-02 | 301-936 | 0–9 XXXall 10 · 3 holders which blocks → | TELNYX LLC | 073H | HAGERSTOWN | MD |
| 2017-06-02 | 312-438 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN01 | IL |
| 2017-06-02 | 320-319 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEAR LAKE | MN |
| 2017-06-02 | 365-250 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bradford | — |
| 2017-06-02 | 365-260 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tottenham | — |
| 2017-06-02 | 365-658 | not yet reported which blocks → | Iristel Inc. | 154E | Milton | — |
| 2017-06-02 | 365-659 | not yet reported which blocks → | Iristel Inc. | 154E | Newmarket | — |
| 2017-06-02 | 579-991 | not yet reported which blocks → | Iristel Inc. | 154E | St-Jerome | — |
| 2017-06-02 | 579-993 | not yet reported which blocks → | Iristel Inc. | 154E | St-Lin | — |
| 2017-06-02 | 587-705 | not yet reported which blocks → | Iristel Inc. | 154E | Medicine Hat | — |
| 2017-06-02 | 810-428 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDBLANC | MI |
| 2017-06-02 | 814-955 | 0–9 XXXall 10 · 8 holders which blocks → | VERIZON NORTH, INC. - PA | 0169 | JOHNSTOWN | PA |
| 2017-06-02 | 825-468 | not yet reported which blocks → | TELUS | 8084 | Edmonton | — |
| 2017-06-02 | 873-499 | not yet reported which blocks → | Iristel Inc. | 154E | Sherbrooke | — |
| 2017-06-02 | 878-355 | 0–9 XXXall 10 · 6 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | UNIONTOWN | PA |
| 2017-06-01 | 219-216 | 0–9 XXXall 10 · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | VALPARAISO | IN |
| 2017-06-01 | 219-217 | 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | WESTVILLE | IN |
| 2017-06-01 | 407-807 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | SANFORD | FL |
| 2017-06-01 | 417-519 | 0XXX4XXX8XXX9XXX · 4 holders which blocks → | WINDSTREAM MISSOURI, INC. | 1885 | VERONA | MO |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.