NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, all time — NPA 267
PAETEC ITEL, LLC 134
OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 123
LEVEL 3 COMMUNICATIONS, LLC - PA 94
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 82
NEW CINGULAR WIRELESS PCS, LLC - DC 68
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
— 267-374 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 QUAKERTOWN PA
— 267-375 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 QUAKERTOWN PA
— 267-376 not yet reported which blocks → ONVOY, LLC - PA 547E QUAKERTOWN PA
— 267-377 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 QUAKERTOWN PA
— 267-378 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J QUAKERTOWN PA
— 267-379 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 QUAKERTOWN PA
— 267-380 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SOUDERTON PA
— 267-381 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SOUDERTON PA
— 267-383 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J SOUDERTON PA
— 267-384 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J SOUDERTON PA
— 267-385 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN3 PA
— 267-386 0XXX5XXX6XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA
— 267-389 not yet reported which blocks → ONVOY, LLC - PA 547E SOUDERTON PA
— 267-390 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 YARDLEY PA
— 267-391 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 YARDLEY PA
— 267-392 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E YARDLEY PA
— 267-393 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 YARDLEY PA
— 267-394 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J YARDLEY PA
— 267-395 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 YARDLEY PA
— 267-397 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 YARDLEY PA
— 267-399 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 YARDLEY PA
— 267-402 0XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 267-407 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN4 PA
— 267-408 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
— 267-409 0–9 XXXall 10 · 6 holders which blocks → THE VOICE APPLICATION NETWORK, LLC 507J SOUDERTON PA
— 267-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 267-413 2XXX3XXX4XXX5XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J NORTHWALES PA
— 267-414 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHLDLPHZN1 PA
— 267-416 0–9 XXXall 10 · 7 holders which blocks → PAETEC ITEL, LLC 829J HARLEYSVL PA
— 267-417 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN32 PA
— 267-419 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN33 PA
— 267-420 0XXX1XXX2XXX7XXX · 3 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 PHPHSBZN32 PA
— 267-426 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN2 PA
— 267-429 2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PERKASIE PA
— 267-430 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHPHSBZN32 PA
— 267-433 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN32 PA
— 267-434 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN32 PA
— 267-435 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN32 PA
— 267-440 1XXX6XXX7XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN32 PA
— 267-447 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NETCARRIER TELECOM, INC. - PA 5494 PHPHSBZN32 PA
— 267-448 0XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN32 PA
— 267-450 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PERKASIE PA
— 267-451 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H PERKASIE PA
— 267-452 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PERKASIE PA
— 267-456 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
— 267-458 not yet reported which blocks → ONVOY, LLC - PA 547E PERKASIE PA
— 267-459 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PERKASIE PA
— 267-460 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN33 PA
— 267-462 0–9 XXXall 10 · 6 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
— 267-463 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA

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.