NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 614
ONVOY, LLC - OH 5
TELNYX LLC 1
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2004-04-08 614-917-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
2004-04-08 614-917-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
2004-03-12 614-344-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HARRISBURG OH
2004-03-12 614-349-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WJEFFERSON OH
2004-03-04 614-310-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WORTHINGTN OH
2004-02-04 614-289-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NEW ALBANY OH
2004-02-04 614-344-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J HARRISBURG OH
2004-02-04 614-382-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J CANALWHSTR OH
2004-02-04 614-574-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J GROVEPORT OH
2004-01-26 614-219-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 HILLIARD OH
2003-12-30 614-335-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ALTON OH
2003-12-30 614-607-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2003-12-30 614-607-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2003-12-11 614-349-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J WJEFFERSON OH
2003-11-17 614-295-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LOCKBOURNE OH
2003-11-17 614-339-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2003-11-17 614-503-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HILLIARD OH
2003-11-17 614-682-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WESTERVL OH
2003-11-12 614-405-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-11-04 614-288-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2003-10-27 614-386-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-27 614-386-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2003-10-17 614-441-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 COLUMBUS OH
2003-10-15 614-662-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LOCKBOURNE OH
2003-09-05 614-330-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2003-09-05 614-330-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBUS OH
2003-08-06 614-333-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B LOCKBOURNE OH
2003-07-29 614-335-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ALTON OH
2003-07-28 614-328-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B REYNOLDSBG OH
2003-07-28 614-339-5XXX 5000–5999Assigned CITYNET OHIO, LLC - OH 036B DUBLIN OH
2003-07-28 614-345-5XXX 5000–5999Assigned CITYNET OHIO, LLC - OH 036B HILLIARD OH
2003-07-28 614-454-5XXX 5000–5999Assigned CITYNET OHIO, LLC - OH 036B GAHANNA OH
2003-07-28 614-547-5XXX 5000–5999Assigned CITYNET OHIO, LLC - OH 036B WORTHINGTN OH
2003-07-28 614-568-5XXX 5000–5999Assigned CITYNET OHIO, LLC - OH 036B WESTERVL OH
2003-07-11 614-245-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NEW ALBANY OH
2003-07-11 614-456-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBUS OH
2003-07-11 614-829-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CANALWHSTR OH
2003-07-11 614-916-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K GROVEPORT OH
2003-07-11 614-934-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K GAHANNA OH
2003-07-11 614-948-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K WESTERVL OH
2003-07-11 614-986-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K REYNOLDSBG OH
2003-07-11 614-987-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K WORTHINGTN OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.