NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

372 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-10-30 470-420 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2018-10-30 470-822 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - GA 6116 BUFORD GA
2018-10-30 585-501 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E HONEOYEFLS NY
2018-10-30 585-552 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E COHOCTON NY
2018-10-30 631-818 0–9 XXXall 10 · 4 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 BABYLON NY
2018-10-30 680-203 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E MORRISVL NY
2018-10-30 701-450 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - ND 452F BISMARCK ND
2018-10-30 701-951 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - ND 452F FARGO ND
2018-10-30 772-900 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H SEBASTIAN FL
2018-10-30 786-643 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MIAMI FL
2018-10-30 813-566 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H TAMPASTH FL
2018-10-30 850-738 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - FL 937C CHERRYLAKE FL
2018-10-30 914-350 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NEW YORK, LLC - NY 155E CHAPPAQUA NY
2018-10-30 920-502 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K NEENAH WI
2018-10-30 978-736 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 LAWRENCE MA
2018-10-29 223-213 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E DILLSBURG PA
2018-10-29 223-214 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E FRYSTOWN PA
2018-10-29 240-680 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF MARYLAND, LLC 568G FREDERICK MD
2018-10-29 325-252 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C PUTNAM TX
2018-10-29 346-373 0–9 XXXall 10 · 3 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F CHANNELVW TX
2018-10-29 412-775 0–9 XXXall 10 · 5 holders which blocks → FULL SERVICE NETWORK LP 7820 PTTSBGZON3 PA
2018-10-29 434-204 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - VA 138E BROOKNEAL VA
2018-10-29 434-216 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VA 138E VIRGILINA VA
2018-10-29 434-280 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E BUCKINGHAM VA
2018-10-29 438-408 not yet reported which blocks → Videotron Ltd. 328F Montreal —
2018-10-29 469-560 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLANO TX
2018-10-29 469-564 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F VENUS TX
2018-10-29 470-651 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA SO GA
2018-10-29 484-543 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E ROBESONIA PA
2018-10-29 520-412 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F TOMBSTONE AZ
2018-10-29 539-629 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 TULSA OK
2018-10-29 581-849 not yet reported which blocks → Videotron Ltd. 328F Quebec —
2018-10-29 603-506 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANCHESTER NH
2018-10-29 651-364 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-10-29 682-279 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F GRANBURY TX
2018-10-29 727-933 0–9 XXXall 10 · 6 holders which blocks → INVOXIO INCORPORATED 158H HUDSON FL
2018-10-29 727-977 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H CLEARWATER FL
2018-10-29 731-278 4XXX which blocks → CHARTER IP ENABLED SERVICES, LLC 792K CYPRESS TN
2018-10-29 763-294 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2018-10-29 825-412 not yet reported which blocks → TELUS 8084 Grande Prairie —
2018-10-29 901-478 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MEMPHIS TN
2018-10-29 913-347 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF KANSAS, LLC - KS 018H TONGANOXIE KS
2018-10-29 940-286 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F PILOTPOINT TX
2018-10-29 985-298 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - LA 153F PIERREPART LA
2018-10-26 202-893 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 6402 WSHNGTNZN1 DC
2018-10-26 432-800 0XXX2XXX4XXX8XXX · 4 holders which blocks → USFON, INC. - TX 473F MIDLAND TX
2018-10-26 458-899 0–9 XXXall 10 · 5 holders which blocks → INVOXIO INCORPORATED 158H REDMOND OR
2018-10-26 551-291 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 RAMSEY NJ
2018-10-26 727-677 0–9 XXXall 10 · 4 holders which blocks → INVOXIO INCORPORATED 158H STPETERSBG FL
2018-10-26 785-553 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - KS 205F BALDWIN KS

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.