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 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
2015-06-05 614-957 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - OH 464C GROVE CITY OH
2015-06-05 614-960 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C ALTON OH
2015-06-05 614-968 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - OH 464C GAHANNA OH
2015-05-26 614-881 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F PLAIN CITY OH
2015-05-07 614-368 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - OH 464C WORTHINGTN OH
2015-04-27 614-363 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F HILLIARD OH
2015-03-24 614-362 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F COLUMBUS OH
2015-03-11 614-966 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2015-01-28 614-350 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F LOCKBOURNE OH
2015-01-28 614-931 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F GROVE CITY OH
2014-11-12 614-814 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 COLUMBUS OH
2014-10-23 614-591 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - OH 464C COLUMBUS OH
2014-10-14 614-641 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
2014-10-10 614-956 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUBLIN OH
2014-09-15 614-705 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2014-09-02 614-971 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C HILLIARD OH
2014-08-19 614-954 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F ALTON OH
2014-08-04 614-972 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 COLUMBUS OH
2014-06-23 614-924 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J NEW ALBANY OH
2014-06-19 614-919 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLIARD OH
2014-06-19 614-936 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLIARD OH
2014-06-12 614-845 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F REYNOLDSBG OH
2014-05-20 614-909 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GROVEPORT OH
2014-05-20 614-910 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
2014-04-25 614-908 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F CANALWHSTR OH
2014-04-22 614-613 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J DUBLIN OH
2014-04-01 614-867 0–9 XXXall 10 · 3 holders which blocks → AT&T ENTERPRISES, LLC 516C COLUMBUS OH
2014-03-20 614-200 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ALTON OH
2014-03-12 614-831 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 GAHANNA OH
2014-03-05 614-817 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 COLUMBUS OH
2014-03-03 614-615 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2014-03-03 614-815 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2014-03-03 614-816 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2013-12-19 614-400 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2013-11-11 614-713 0–9 XXXall 10 · 3 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J GAHANNA OH
2013-11-11 614-803 0–9 XXXall 10 · 3 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J GROVEPORT OH
2013-09-19 614-943 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 DUBLIN OH
2013-08-02 614-674 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2013-07-25 614-779 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2013-06-26 614-663 0–9 XXXall 10 · 5 holders which blocks → OHIO BELL TEL CO 9321 GROVE CITY OH
2013-06-25 614-681 0–9 XXXall 10 · 6 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WORTHINGTN OH
2013-05-23 614-710 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F HILLIARD OH
2013-05-09 614-980 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2013-04-09 614-721 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F COLUMBUS OH
2013-01-28 614-393 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GROVEPORT OH
2013-01-28 614-709 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GROVEPORT OH
2013-01-23 614-894 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
2013-01-23 614-988 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
2013-01-10 614-773 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLIARD OH
2013-01-10 614-952 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLIARD OH

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.