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
AIRUS, INC. - MS 27
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
2021-12-07 228-226-4XXX 4000–4999Assigned AIRUS, INC. - MS 459H BAYSTLOUIS MS
2021-08-10 228-202-6XXX 6000–6999Assigned AIRUS, INC. - MS 459H PASCAGOULA MS
2021-08-10 228-588-4XXX 4000–4999Assigned AIRUS, INC. - MS 459H HURLEY MS
2020-05-26 228-295-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H BILOXI MS
2020-03-25 228-687-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H GULFPORT MS
2020-02-06 228-283-2XXX 2000–2999Assigned AIRUS, INC. - MS 459H VANCLEAVE MS
2019-10-04 228-586-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H PASSCHRSTN MS
2018-12-13 228-300-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H OCEAN SPG MS
2018-12-12 228-200-6XXX 6000–6999Assigned AIRUS, INC. - MS 459H HURLEY MS
2018-11-29 228-366-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H PASCAGOULA MS
2018-10-25 228-283-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H VANCLEAVE MS
2018-09-19 228-325-2XXX 2000–2999Assigned AIRUS, INC. - MS 459H BILOXI MS
2018-09-07 228-222-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H PASSCHRSTN MS
2018-02-07 228-254-4XXX 4000–4999Assigned AIRUS, INC. - MS 459H PASSCHRSTN MS
2018-02-07 228-382-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H OCEAN SPG MS
2018-02-07 228-471-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H PASCAGOULA MS
2018-02-07 228-813-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H BAYSTLOUIS MS
2017-08-09 228-687-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H GULFPORT MS
2017-08-08 228-325-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H BILOXI MS
2017-08-07 228-325-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H BILOXI MS
2017-07-05 228-200-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H HURLEY MS
2017-06-05 228-325-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H BILOXI MS
2017-03-09 228-295-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H BILOXI MS
2017-03-09 228-901-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H HURLEY MS
2016-09-09 228-200-0XXX 0000–0999Assigned AIRUS, INC. - MS 459H HURLEY MS
2015-03-06 228-325-1XXX 1000–1999Assigned AIRUS, INC. - MS 459H BILOXI MS
2008-07-25 228-357-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H GULFPORT 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.