NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

375 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 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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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Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 412-288 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-289 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 INDIANA PA
— 412-291 0XXX8XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-292 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTGSBNZN13 PA
— 412-293 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN14 PA
— 412-296 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 WASHINGTON PA
— 412-297 1XXX2XXX3XXX6XXX9XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTSBGZON1 PA
— 412-298 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
— 412-299 5XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN15 PA
— 412-300 not yet reported which blocks → SPOK, INC. 6630 PTGSBNZN14 PA
— 412-302 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-303 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-306 8XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON6 PA
— 412-307 3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PTTSBGZON2 PA
— 412-308 0XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN12 PA
— 412-309 none assigned yet which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 INDIANA PA
— 412-310 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 412-312 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTSBGZON2 PA
— 412-313 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTSBGZON2 PA
— 412-314 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN10 PA
— 412-316 5XXX6XXX7XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTTSBGZON1 PA
— 412-317 3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN22 PA
— 412-318 5XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN17 PA
— 412-319 0XXX2XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN13 PA
— 412-320 0XXX1XXX3XXX5XXX6XXX9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-321 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-322 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-323 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-324 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTGSBNZN16 PA
— 412-325 not yet reported which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON1 PA
— 412-326 3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PTTSBGZON5 PA
— 412-327 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
— 412-330 0XXX1XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-331 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON7 PA
— 412-333 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-334 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-335 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-336 3XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON4 PA
— 412-337 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-338 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-340 not yet reported which blocks → SCHUYLKILL MOBILE FONE, INC. 6739 PTGSBNZN19 PA
— 412-341 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON6 PA
— 412-342 3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PTTSBGZON4 PA
— 412-343 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON6 PA
— 412-344 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON6 PA
— 412-345 1XXX3XXX5XXX6XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PTTSBGZON8 PA
— 412-346 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PTGSBNZN10 PA
— 412-347 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PTGSBNZN12 PA
— 412-348 7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J PTGSBNZN17 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.