NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 614
OHIO BELL TEL CO 254
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 96
AERIAL COMMUNICATIONS, INC. 89
NEW CINGULAR WIRELESS PCS, LLC - IL 46
PAETEC ITEL, LLC 44
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
2002-12-27 614-553 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DUBLIN OH
2002-12-17 614-423 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WESTERVL OH
2002-12-17 614-452 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 REYNOLDSBG OH
2002-12-17 614-454 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GAHANNA OH
2002-12-17 614-503 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HILLIARD OH
2002-11-14 614-406 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2002-10-18 614-714 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WESTERVL OH
2002-09-17 614-516 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → OHIO BELL TEL CO 9321 WORTHINGTN OH
2002-09-12 614-383 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → AT&T - LOCAL 7421 GAHANNA OH
2002-09-06 614-399 not yet reported which blocks → SPOK, INC. 6630 COLUMBUS OH
2002-08-12 614-408 2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J DUBLIN OH
2002-08-12 614-468 1XXX2XXX3XXX5XXX6XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WORTHINGTN OH
2002-08-12 614-505 2XXX4XXX5XXX9XXX · 2 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WORTHINGTN OH
2002-07-23 614-426 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → FIRST COMMUNICATIONS, LLC 460K WESTERVL OH
2002-07-11 614-886 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2002-06-19 614-385 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → AT&T - LOCAL 7421 ALTON OH
2002-05-23 614-643 not yet reported which blocks → PAETEC ITEL, LLC 829J COLUMBUS OH
2002-05-13 614-716 8XXX9XXX which blocks → OHIO BELL TEL CO 9321 COLUMBUS OH
2002-04-21 614-626 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K REYNOLDSBG OH
2002-04-17 614-642 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FIRST COMMUNICATIONS, LLC 460K WJEFFERSON OH
2002-04-17 614-654 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FIRST COMMUNICATIONS, LLC 460K LOCKBOURNE OH
2002-04-17 614-655 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FIRST COMMUNICATIONS, LLC 460K REYNOLDSBG OH
2002-04-17 614-656 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FIRST COMMUNICATIONS, LLC 460K NEW ALBANY OH
2002-04-17 614-991 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → FIRST COMMUNICATIONS, LLC 460K GROVE CITY OH
2002-04-17 614-992 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FIRST COMMUNICATIONS, LLC 460K HARRISBURG OH
2002-04-17 614-993 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → FIRST COMMUNICATIONS, LLC 460K GROVEPORT OH
2002-04-17 614-994 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → FIRST COMMUNICATIONS, LLC 460K CANALWHSTR OH
2002-04-17 614-996 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FIRST COMMUNICATIONS, LLC 460K ALTON OH
2002-04-16 614-916 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 GROVEPORT OH
2002-03-25 614-394 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WESTERVL OH
2002-03-22 614-515 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WORTHINGTN OH
2002-03-21 614-808 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GROVE CITY OH
2002-02-21 614-467 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DUBLIN OH
2002-02-21 614-682 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → AT&T - LOCAL 7421 WESTERVL OH
2001-12-10 614-390 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2001-10-11 614-330 0XXX2XXX3XXX4XXX7XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2001-10-05 614-942 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J WESTERVL OH
2001-09-27 614-441 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 COLUMBUS OH
2001-09-21 614-746 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2001-08-16 614-622 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2001-06-25 614-376 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
2001-06-11 614-477 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2001-06-05 614-382 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 CANALWHSTR OH
2001-06-05 614-776 0XXX4XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 WESTERVL OH
2001-05-31 614-342 0XXX1XXX3XXX9XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 GAHANNA OH
2001-05-03 614-453 2XXX3XXX5XXX6XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J COLUMBUS OH
2001-04-13 614-356 0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → OHIO BELL TEL CO 9321 DUBLIN OH
2001-03-26 614-355 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2001-02-26 614-774 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2001-02-05 614-532 2XXX4XXX8XXX9XXX · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K GAHANNA OH

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.