NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

13 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, last 30 days — NPA 228
ONVOY, LLC - MS 9
OPENTACT INC. 1
INTRADO COMMUNICATIONS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 1
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-12-06 228-337-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-348-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-456-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-456-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-465-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-12-06 228-910-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-11-23 228-213-1XXX 1000–1999Assigned TELNYX LLC 073H GULFPORT MS
2021-11-02 228-256-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2021-11-02 228-256-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2021-11-02 228-288-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2021-11-02 228-288-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2021-11-02 228-336-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2021-11-02 228-336-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2021-11-02 228-366-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2021-11-02 228-366-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2021-11-02 228-533-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-11-02 228-600-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E TANNERWLMS MS
2021-11-02 228-600-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E TANNERWLMS MS
2021-11-02 228-888-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-10-29 228-918-3XXX 3000–3999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-10-29 228-918-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-10-29 228-918-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-10-29 228-918-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-10-26 228-600-5XXX 5000–5999Assigned METROPCS, INC. 5562 TANNERWLMS MS
2021-10-18 228-215-7XXX 7000–7999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-18 228-800-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-18 228-800-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-18 228-819-0XXX 0000–0999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-18 228-819-3XXX 3000–3999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-18 228-819-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 OCEAN SPG MS
2021-10-13 228-600-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-10-13 228-600-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-10-13 228-600-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-10-13 228-600-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-10-13 228-600-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-10-12 228-934-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PASCAGOULA MS
2021-10-11 228-274-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C GULFPORT MS
2021-10-11 228-372-2XXX 2000–2999Assigned METROPCS, INC. 5562 PASCAGOULA MS
2021-10-01 228-274-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2021-10-01 228-274-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2021-10-01 228-274-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2021-09-23 228-918-1XXX 1000–1999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-09-23 228-918-2XXX 2000–2999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 GULFPORT MS
2021-09-16 228-288-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D PASSCHRSTN MS
2021-09-02 228-712-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J PASCAGOULA MS
2021-09-02 228-870-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J GULFPORT MS
2021-09-01 228-335-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2021-08-12 228-617-1XXX 1000–1999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 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.