NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 814-269 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-270 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 JOHNSTOWN PA
— 814-272 not yet reported which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 STATECOLLG PA
— 814-274 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 COUDERSPT PA
— 814-275 5XXX6XXX · 2 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 NEWBTHLHEM PA
— 814-276 2XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 OSTERBURG PA
— 814-277 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MAHAFFEY PA
— 814-278 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 STATECOLLG PA
— 814-281 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F WINBURNE PA
— 814-282 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 MEADVILLE PA
— 814-283 4XXX5XXX6XXX · 2 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 ALTOONA PA
— 814-284 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J COUDERSPT PA
— 814-286 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J ERIE PA
— 814-287 2XXX3XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHILIPSBG PA
— 814-288 7XXX8XXX9XXX which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-289 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 SOMERSET PA
— 814-291 not yet reported which blocks → SPOK, INC. 6630 JOHNSTOWN PA
— 814-293 4XXX6XXX9XXX · 3 holders which blocks → SCHUYLKILL MOBILE FONE, INC. 6739 HUNTINGDON PA
— 814-295 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J ERIE PA
— 814-297 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J CLARION PA
— 814-302 0XXX1XXX2XXX4XXX6XXX · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ELKLAND PA
— 814-303 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MILLHEIM PA
— 814-306 none assigned yet which blocks → TWC IP ENABLED SERVICES, LLC 793K CONNEAUTVL PA
— 814-308 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 STATECOLLG PA
— 814-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 814-312 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 ALTOONA PA
— 814-313 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - PA 547E WARREN PA
— 814-316 0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARION PA
— 814-317 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 HOLLIDYSBG PA
— 814-320 0XXX1XXX2XXX3XXX4XXX5XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 COUDERSPT PA
— 814-321 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → AT&T - LOCAL 7421 STATECOLLG PA
— 814-322 2XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-323 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ERIE PA
— 814-324 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → VERIZON NORTH, INC. - PA 0169 WELLERSBG PA
— 814-326 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NORTH, INC. - PA (CONTEL) 0170 KNOXVILLE PA
— 814-328 1XXX3XXX4XXX7XXX8XXX · 2 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 HAZEN PA
— 814-332 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 MEADVILLE PA
— 814-333 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 MEADVILLE PA
— 814-334 1XXX2XXX3XXX4XXX7XXX8XXX · 4 holders which blocks → VERIZON NORTH, INC. - PA (CONTEL) 0170 HARRISNVLY PA
— 814-336 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 MEADVILLE PA
— 814-337 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 MEADVILLE PA
— 814-339 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 OSCEOLA ML PA
— 814-340 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 ERIE PA
— 814-341 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 JOHNSTOWN PA
— 814-342 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHILIPSBG PA
— 814-343 0XXX1XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHILIPSBG PA
— 814-344 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 7 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 CARROLLTN PA
— 814-345 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 WINBURNE PA
— 814-346 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J FRANKLIN PA
— 814-349 0XXX1XXX3XXX6XXX7XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MILLHEIM PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.