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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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 |
|---|---|---|---|---|---|---|
| 2022-04-05 | 507-887 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | NEW ULM | MN |
| 2022-04-05 | 564-516 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | SALISH NETWORKS, INC. - WA | 152H | MARYSVILLE | WA |
| 2022-04-05 | 579-825 | not yet reported which blocks → | TELUS Quebec | 2243 | Contrecoeur | — |
| 2022-04-05 | 672-702 | not yet reported which blocks → | Iristel Inc. | 154E | Burns Lake | — |
| 2022-04-05 | 672-785 | not yet reported which blocks → | Iristel Inc. | 154E | Lillooet | — |
| 2022-04-05 | 762-543 | 1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ELLIJAY | GA |
| 2022-04-05 | 901-668 | 0–9 XXXall 10 · 4 holders which blocks → | POWERTEL MEMPHIS LICENSES, INC. | 7474 | COLLIERVL | TN |
| 2022-04-05 | 930-266 | 2XXX6XXX · 2 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | DECKER | IN |
| 2022-04-05 | 930-277 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | NASHVILLE | IN |
| 2022-04-05 | 930-422 | 2XXX4XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | STANFORD | IN |
| 2022-04-05 | 930-466 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | WASHINGTON | IN |
| 2022-04-04 | 206-360 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - WA | 483E | SEATTLE | WA |
| 2022-04-04 | 269-265 | 5XXX6XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | MENDON | MI |
| 2022-04-04 | 308-867 | 5XXX8XXX · 2 holders which blocks → | COMMIO, LLC | 939H | GRAND IS | NE |
| 2022-04-04 | 343-470 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Hawkesbury | — |
| 2022-04-04 | 385-462 | 0–9 XXXall 10 · 2 holders which blocks → | AT&T - LOCAL | 7421 | FARMINGTON | UT |
| 2022-04-04 | 531-310 | 0–9 XXXall 10 · 5 holders which blocks → | COMMIO, LLC | 939H | LINCOLN | NE |
| 2022-04-04 | 873-470 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Grenville | — |
| 2022-04-04 | 956-737 | 0XXX1XXX2XXX7XXX8XXX · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | ZAPATA | TX |
| 2022-04-04 | 956-779 | 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | SULLIVANCY | TX |
| 2022-04-04 | 956-837 | 0–9 XXXall 10 · 6 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | PHARR | TX |
| 2022-04-04 | 956-864 | 0XXX1XXX3XXX7XXX8XXX · 3 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | EDCOUCH | TX |
| 2022-04-01 | 224-460 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2022-04-01 | 971-429 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2022-03-31 | 303-970 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - CO | 026D | DECKERS | CO |
| 2022-03-31 | 307-895 | 8XXX which blocks → | TWILIO INTERNATIONAL, INC. | 506J | CHEYENNE | WY |
| 2022-03-31 | 539-270 | 0XXX7XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | ENTERPRISE | OK |
| 2022-03-31 | 539-274 | 7XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | LONGTOWN | OK |
| 2022-03-31 | 539-285 | 7XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | KEOTA | OK |
| 2022-03-31 | 539-288 | 7XXX8XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | MCCURTAIN | OK |
| 2022-03-31 | 539-339 | 7XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | KEEFETON | OK |
| 2022-03-31 | 539-398 | 7XXX which blocks → | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | WARNER | OK |
| 2022-03-31 | 571-578 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | LEESBURG | VA |
| 2022-03-31 | 681-426 | 0XXX3XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV | 6394 | WHSLPHRSPG | WV |
| 2022-03-31 | 681-436 | 0XXX which blocks → | BANDWIDTH.COM CLEC, LLC - WV | 080F | SETH | WV |
| 2022-03-31 | 742-374 | not yet reported which blocks → | FGLTEL Inc. | 139J | King City | — |
| 2022-03-31 | 742-375 | not yet reported which blocks → | FGLTEL Inc. | 139J | Kleinburg | — |
| 2022-03-31 | 742-376 | not yet reported which blocks → | FGLTEL Inc. | 139J | Maple | — |
| 2022-03-31 | 742-377 | not yet reported which blocks → | FGLTEL Inc. | 139J | Markham | — |
| 2022-03-31 | 742-378 | not yet reported which blocks → | FGLTEL Inc. | 139J | Mount Albert | — |
| 2022-03-31 | 742-379 | not yet reported which blocks → | FGLTEL Inc. | 139J | Newmarket | — |
| 2022-03-31 | 742-380 | not yet reported which blocks → | FGLTEL Inc. | 139J | Nobleton | — |
| 2022-03-31 | 742-381 | not yet reported which blocks → | FGLTEL Inc. | 139J | Oak Ridges | — |
| 2022-03-31 | 742-382 | not yet reported which blocks → | FGLTEL Inc. | 139J | Palgrave | — |
| 2022-03-31 | 742-384 | not yet reported which blocks → | FGLTEL Inc. | 139J | Queensville | — |
| 2022-03-31 | 742-386 | not yet reported which blocks → | FGLTEL Inc. | 139J | Schomberg | — |
| 2022-03-31 | 742-387 | not yet reported which blocks → | FGLTEL Inc. | 139J | Stouffville | — |
| 2022-03-31 | 742-388 | not yet reported which blocks → | FGLTEL Inc. | 139J | Sutton | — |
| 2022-03-31 | 742-389 | not yet reported which blocks → | FGLTEL Inc. | 139J | Thornhill | — |
| 2022-03-31 | 742-391 | not yet reported which blocks → | FGLTEL Inc. | 139J | Unionville | — |
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.