NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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 740
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2
AHOI 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
2005-04-15 740-572-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 WSNGTNCTHS OH
2005-04-11 740-464-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTSMOUTH OH
2005-04-01 740-275-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2005-04-01 740-279-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LOGAN OH
2005-04-01 740-296-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STCLAIRSVL OH
2005-04-01 740-325-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BELLAIRE OH
2005-04-01 740-370-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PORTSMOUTH OH
2005-04-01 740-535-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MINGO JCT OH
2005-04-01 740-546-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ADENA OH
2005-04-01 740-598-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BRILLIANT OH
2005-04-01 740-738-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MARTISFRRY OH
2005-04-01 740-761-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BETHESDA OH
2005-04-01 740-765-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J RICHMOND OH
2005-04-01 740-769-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J DLVLMTPLNT OH
2005-04-01 740-859-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TILTONSVL OH
2005-04-01 740-968-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FLUSHING OH
2005-03-30 740-619-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BARNESVL OH
2005-03-29 740-422-3XXX 3000–3999Assigned XO OHIO, INC. 7520 LANCASTER OH
2005-03-29 740-422-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C LANCASTER OH
2005-03-29 740-539-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-29 740-539-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 LANCASTER OH
2005-03-18 740-251-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MARION OH
2005-03-18 740-954-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHVILLE OH
2005-03-14 740-214-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ROSEVILLE OH
2005-03-14 740-303-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PHILO OH
2005-03-14 740-337-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TORONTO OH
2005-03-14 740-521-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DRESDEN OH
2005-03-14 740-563-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MINGO JCT OH
2005-03-14 740-595-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 RADNOR OH
2005-03-14 740-660-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ARABIA OH
2005-03-14 740-661-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FULTONHAM OH
2005-03-14 740-666-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 OSTRANDER OH
2005-03-14 740-807-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWMTMORAS OH
2005-03-14 740-923-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NORWICH OH
2005-03-11 740-222-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAVERLY OH
2005-03-11 740-466-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHILLICOTH OH
2005-03-08 740-809-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 JOHNSTOWN OH
2005-03-04 740-414-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 IRONTON OH
2005-03-04 740-414-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 IRONTON OH
2005-03-03 740-527-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 HEBRON OH
2005-03-02 740-466-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHILLICOTH OH
2005-03-02 740-578-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 GALLIPOLIS OH
2005-03-01 740-621-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 NEWLXINGTN 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.