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
— 484-234 2XXX3XXX4XXX6XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN12 PA
— 484-235 2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN30 PA
— 484-237 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 DOWNINGTN PA
— 484-239 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
— 484-240 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J CATASAUQUA PA
— 484-242 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 BETHLEHEM PA
— 484-245 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J CATASAUQUA PA
— 484-246 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J CATASAUQUA PA
— 484-247 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MORTONVL PA
— 484-249 not yet reported which blocks → ONVOY, LLC - PA 547E CATASAUQUA PA
— 484-250 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN30 PA
— 484-251 3XXX4XXX5XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J PHPHSBZN17 PA
— 484-252 0XXX2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 EXTON PA
— 484-254 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 PHPHSBZN26 PA
— 484-256 3XXX8XXX9XXX · 2 holders which blocks → METROPCS, INC. 5562 READING PA
— 484-260 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E UNIONVILLE PA
— 484-261 not yet reported which blocks → ONVOY, LLC - PA 547E SLATINGTON PA
— 484-262 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SLATINGTON PA
— 484-263 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J SLATINGTON PA
— 484-265 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SLATINGTON PA
— 484-270 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN23 PA
— 484-271 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NORTHAMPTN PA
— 484-272 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NORTHAMPTN PA
— 484-275 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J NORTHAMPTN PA
— 484-276 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E NORTHAMPTN PA
— 484-278 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN23 PA
— 484-279 not yet reported which blocks → ONVOY, LLC - PA 547E NORTHAMPTN PA
— 484-281 0XXX1XXX2XXX7XXX · 4 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 BATH PA
— 484-282 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 BATH PA
— 484-283 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 KEMBLESVL PA
— 484-284 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J BATH PA
— 484-285 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BATH PA
— 484-286 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E BATH PA
— 484-287 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 BATH PA
— 484-288 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J COATESVL PA
— 484-289 not yet reported which blocks → ONVOY, LLC - PA 547E BATH PA
— 484-291 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J NAZARETH PA
— 484-292 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NAZARETH PA
— 484-293 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J NAZARETH PA
— 484-296 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E NAZARETH PA
— 484-298 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 NAZARETH PA
— 484-299 not yet reported which blocks → ONVOY, LLC - PA 547E NAZARETH PA
— 484-301 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 WESTTOWN PA
— 484-303 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E WESTTOWN PA
— 484-305 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 UPBLCKEDDY PA
— 484-306 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 7 holders which blocks → TELNYX LLC 073H RIEGELSVL PA
— 484-307 1XXX5XXX6XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WESTTOWN PA
— 484-308 none assigned yet which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 RIEGELSVL PA
— 484-309 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J UPBLCKEDDY PA
— 484-310 not yet reported which blocks → ONVOY, LLC - PA 547E RIEGELSVL PA

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.