NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 734
CHARTER IP ENABLED SERVICES, LLC 26
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
2019-03-29 734-410-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONROE MI
2018-11-09 734-856-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAMBERTVL MI
2018-04-05 734-279-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PETERSBURG MI
2014-12-08 734-872-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWPORT MI
2012-09-25 734-872-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWPORT MI
2012-06-25 734-639-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONROE MI
2012-05-30 734-654-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CARLETON MI
2012-04-27 734-648-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PINCKNEY MI
2009-05-21 734-244-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONROE MI
2007-01-25 734-648-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PINCKNEY MI
2007-01-25 734-726-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DEXTER MI
2007-01-18 734-550-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WHITMORELK MI
2007-01-17 734-239-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ANN ARBOR MI
2007-01-17 734-259-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PLYMOUTH MI
2007-01-17 734-299-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CARLETON MI
2007-01-17 734-317-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ERIE MI
2007-01-17 734-348-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FLAT ROCK MI
2007-01-17 734-375-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREGORY MI
2007-01-17 734-384-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONROE MI
2007-01-17 734-413-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROMULUS MI
2007-01-17 734-441-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROCKWOOD MI
2007-01-17 734-529-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DUNDEE MI
2007-01-17 734-562-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHELSEA MI
2007-01-17 734-606-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEW BOSTON MI
2007-01-17 734-708-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MAYBEE MI
2007-01-17 734-868-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K IDA MI

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.