NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

13 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, 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-12-11 228-591-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J VANCLEAVE MS
2020-12-10 228-687-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2020-12-10 228-687-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2020-12-10 228-870-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2020-12-10 228-870-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2020-12-04 228-800-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2020-11-27 228-356-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E HURLEY MS
2020-11-27 228-356-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E HURLEY MS
2020-11-27 228-666-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2020-11-27 228-666-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2020-11-27 228-678-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2020-11-27 228-678-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2020-11-23 228-549-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C PASCAGOULA MS
2020-11-19 228-205-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2020-11-19 228-283-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E VANCLEAVE MS
2020-11-19 228-332-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2020-11-19 228-332-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2020-11-19 228-712-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2020-11-19 228-797-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2020-11-19 228-797-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2020-11-19 228-819-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E OCEAN SPG MS
2020-11-19 228-819-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E OCEAN SPG MS
2020-11-19 228-826-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E VANCLEAVE MS
2020-11-12 228-529-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-529-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-546-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-12 228-594-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-11-02 228-333-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BILOXI MS
2020-11-02 228-333-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E BILOXI MS
2020-11-02 228-333-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E BILOXI MS
2020-11-02 228-333-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E BILOXI MS
2020-11-02 228-333-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E BILOXI MS
2020-10-14 228-202-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J PASCAGOULA MS
2020-10-14 228-469-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J BAYSTLOUIS MS
2020-10-14 228-575-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J GULFPORT MS
2020-10-02 228-274-1XXX 1000–1999Assigned IP HORIZON LLC 515J GULFPORT MS
2020-09-29 228-344-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BAYSTLOUIS MS
2020-09-29 228-901-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MS 5178 HURLEY MS
2020-09-28 228-280-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BILOXI MS

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.