NumberResearchRecent prefix assignments
338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 |
|---|---|---|---|---|---|---|
| 2001-11-05 | 267-443 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN1 | PA |
| 2001-11-05 | 267-617 | 9XXX which blocks → | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | PERKASIE | PA |
| 2001-11-05 | 267-629 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOYLESTOWN | PA |
| 2001-11-05 | 267-999 | 9XXX which blocks → | SERVICE ELECTRIC TELEPHONE COMPANY, LLC | 8320 | QUAKERTOWN | PA |
| 2001-11-05 | 313-629 | 0XXX2XXX3XXX4XXX5XXX7XXX8XXX which blocks → | METROPCS, INC. | 5562 | DETROITZN5 | MI |
| 2001-11-05 | 402-706 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OMAHA | NE |
| 2001-11-05 | 403-944 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2001-11-05 | 606-462 | 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → | METROPCS, INC. | 5562 | MOREHEAD | KY |
| 2001-11-05 | 613-886 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kanata-Stittsville | — |
| 2001-11-05 | 704-222 | none assigned yet which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | CHARLOTTE | NC |
| 2001-11-05 | 763-370 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TWINCITIES | MN |
| 2001-11-05 | 773-742 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | CHICGOZN03 | IL |
| 2001-11-05 | 803-686 | 3XXX6XXX7XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ALLENDALE | SC |
| 2001-11-05 | 803-687 | 1XXX5XXX7XXX8XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | BATESBURG | SC |
| 2001-11-05 | 843-909 | 6XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | NWALTERBOR | SC |
| 2001-11-02 | 208-608 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | BOISE | ID |
| 2001-11-02 | 416-673 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Toronto | — |
| 2001-11-02 | 417-664 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | LEBANON | MO |
| 2001-11-02 | 417-669 | 6XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | MONETT | MO |
| 2001-11-02 | 514-809 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2001-11-02 | 608-566 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | T-MOBILE USA, INC. | 6529 | PORTAGE | WI |
| 2001-11-02 | 608-567 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | TOMAH | WI |
| 2001-11-02 | 613-683 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2001-11-02 | 757-470 | 2XXX3XXX4XXX5XXX · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | NRFOLKZON2 | VA |
| 2001-11-02 | 902-382 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Pictou | — |
| 2001-11-02 | 902-576 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Waverley | — |
| 2001-11-02 | 989-467 | 2XXX3XXX5XXX7XXX8XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLIFFORD | MI |
| 2001-11-01 | 248-943 | none assigned yet which blocks → | METROPCS, INC. | 5562 | SOUTHFIELD | MI |
| 2001-11-01 | 250-222 | not yet reported which blocks → | TELUS Mobility | 8301 | Gulf Islands | — |
| 2001-11-01 | 256-402 | 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | DELTA | AL |
| 2001-11-01 | 267-274 | 0–9 XXXall 10 · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | YARDLEY | PA |
| 2001-11-01 | 336-610 | not yet reported which blocks → | READY TELECOM, INC. - NC | 5307 | ASHEBORO | NC |
| 2001-11-01 | 337-292 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → | VOICESTREAM GSM I, LLC | 150C | LK CHARLES | LA |
| 2001-11-01 | 412-628 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2001-11-01 | 412-969 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PTTSBGZON1 | PA |
| 2001-11-01 | 517-682 | 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | 123.NET, LLC | 2550 | BLISSFIELD | MI |
| 2001-11-01 | 517-727 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | CHARLOTTE | MI |
| 2001-11-01 | 519-346 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| 2001-11-01 | 519-370 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| 2001-11-01 | 703-659 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | MANASSAS | VA |
| 2001-11-01 | 706-806 | 9XXX which blocks → | PAETEC ITEL, LLC | 829J | ROSSVILLE | GA |
| 2001-11-01 | 712-395 | 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | UNITED STATES CELLULAR - IA | 6266 | ORANGECITY | IA |
| 2001-11-01 | 803-565 | 4XXX5XXX7XXX8XXX which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | NO SUMTER | SC |
| 2001-11-01 | 812-585 | 3XXX4XXX5XXX7XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | SPENCER | IN |
| 2001-11-01 | 814-548 | 6XXX7XXX · 2 holders which blocks → | WINDSTREAM D & E SYSTEMS, INC. - PA | 4114 | BELLEFONTE | PA |
| 2001-11-01 | 863-733 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | BARTOW | FL |
| 2001-11-01 | 863-734 | 2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | LAKE WALES | FL |
| 2001-11-01 | 989-333 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | FAIRVIEW | MI |
| 2001-11-01 | 989-432 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | VASSAR | MI |
| 2001-11-01 | 989-512 | not yet reported which blocks → | TELNET WORLDWIDE, INC. | 817J | STANDISH | MI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.