NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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, all time — NPA 740
COMCAST IP PHONE, LLC 31
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
2023-05-26 740-733-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SMITHFIELD OH
2023-05-26 740-786-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SOMERTON OH
2023-04-26 740-544-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KNOXVILLE OH
2023-04-26 740-730-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TORONTO OH
2020-11-11 740-257-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BELLAIRE OH
2020-11-11 740-346-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2020-11-11 740-425-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BARNESVL OH
2020-11-11 740-650-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STCLAIRSVL OH
2019-12-16 740-980-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CENTERVL OH
2019-08-23 740-346-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2018-10-19 740-782-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MORRISTOWN OH
2015-02-26 740-325-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BELLAIRE OH
2014-12-19 740-609-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MARTISFRRY OH
2014-11-24 740-792-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2012-05-02 740-449-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J STCLAIRSVL OH
2011-08-29 740-314-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2009-02-18 740-609-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MARTISFRRY OH
2006-09-06 740-314-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL OH
2005-04-01 740-275-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J STEUBENVL 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
2005-04-01 740-535-8XXX 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

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.