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 228
CELLULAR SOUTH, INC. 25
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
2024-08-14 228-240-2XXX 2000–2999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2024-08-14 228-240-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2024-08-14 228-294-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2024-08-14 228-407-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 PASCAGOULA MS
2020-12-04 228-800-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2019-12-09 228-346-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2019-12-09 228-346-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2019-12-09 228-819-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2017-03-17 228-382-0XXX 0000–0999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2011-10-28 228-334-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2011-03-24 228-236-8XXX 8000–8999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2009-06-30 228-334-2XXX 2000–2999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2009-06-30 228-761-6XXX 6000–6999Assigned CELLULAR SOUTH, INC. 6581 PASCAGOULA MS
2009-03-06 228-236-7XXX 7000–7999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2008-11-07 228-236-6XXX 6000–6999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2008-03-04 228-382-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2008-01-28 228-334-0XXX 0000–0999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2007-05-18 228-236-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2007-05-18 228-236-5XXX 5000–5999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2006-11-01 228-382-2XXX 2000–2999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2005-05-09 228-282-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2005-05-09 228-282-5XXX 5000–5999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2004-10-06 228-282-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2004-07-06 228-223-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2004-05-18 228-282-2XXX 2000–2999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS

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.