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
2005-08-05 614-915-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2005-08-02 614-269-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C GAHANNA OH
2005-08-02 614-317-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C GROVE CITY OH
2005-08-02 614-356-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-408-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-408-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-408-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-467-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-467-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-28 614-467-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DUBLIN OH
2005-07-27 614-604-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C REYNOLDSBG OH
2005-07-27 614-986-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K REYNOLDSBG OH
2005-07-27 614-986-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K REYNOLDSBG OH
2005-07-22 614-634-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-07-22 614-634-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-07-14 614-670-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBUS OH
2005-07-14 614-670-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K COLUMBUS OH
2005-07-13 614-384-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-07-13 614-384-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-07-06 614-607-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2005-06-29 614-542-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-545-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-546-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-546-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-546-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-546-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-546-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBUS OH
2005-06-29 614-604-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 REYNOLDSBG OH
2005-06-28 614-317-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GROVE CITY OH
2005-06-28 614-384-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-06-27 614-305-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GROVE CITY OH
2005-06-27 614-305-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GROVE CITY OH
2005-06-21 614-245-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 NEW ALBANY OH
2005-06-21 614-317-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GROVE CITY OH
2005-06-21 614-317-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GROVE CITY OH
2005-06-21 614-360-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2005-06-21 614-396-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WORTHINGTN OH
2005-06-10 614-634-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 COLUMBUS OH
2005-06-08 614-376-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 DUBLIN OH
2005-06-08 614-376-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 DUBLIN OH
2005-06-08 614-607-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 COLUMBUS OH
2005-06-07 614-405-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-06-07 614-405-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-06-03 614-360-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-05-25 614-255-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-05-25 614-360-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-05-25 614-360-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-05-20 614-604-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 REYNOLDSBG OH
2005-05-19 614-732-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS OH
2005-05-19 614-732-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 COLUMBUS 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.