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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-10-11 228-351-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C GULFPORT MS
2019-10-11 228-351-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C GULFPORT MS
2019-10-11 228-999-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-11 228-999-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-10-04 228-586-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H PASSCHRSTN MS
2019-09-30 228-231-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2019-09-30 228-300-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E OCEAN SPG MS
2019-09-30 228-300-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E OCEAN SPG MS
2019-09-30 228-688-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2019-09-18 228-567-8XXX 8000–8999Assigned FRACTEL, LLC 965H PASCAGOULA MS
2019-09-18 228-933-3XXX 3000–3999Assigned FRACTEL, LLC 965H PASCAGOULA MS
2019-09-12 228-256-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2019-09-12 228-256-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2019-09-12 228-400-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E BILOXI MS
2019-09-12 228-400-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E BILOXI MS
2019-08-23 228-256-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2019-08-23 228-256-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2019-08-14 228-465-3XXX 3000–3999Assigned FRACTEL, LLC 965H BILOXI MS
2019-08-14 228-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H BILOXI MS
2019-08-14 228-999-7XXX 7000–7999Assigned FRACTEL, LLC 965H BILOXI MS
2019-07-08 228-299-9XXX 9000–9999Assigned AT&T - LOCAL 7421 PEARLINGTN MS
2019-06-28 228-277-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F GULFPORT MS
2019-06-26 228-666-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2019-06-26 228-666-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2019-06-26 228-678-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2019-06-26 228-678-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2019-06-17 228-529-9XXX 9000–9999Assigned COMMIO, LLC 939H BILOXI MS
2019-04-17 228-400-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E BILOXI MS
2019-04-17 228-900-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E TANNERWLMS MS
2019-04-15 228-283-3XXX 3000–3999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VANCLEAVE MS
2019-03-07 228-260-1XXX 1000–1999Assigned METROPCS, INC. 5562 BILOXI MS
2019-03-05 228-226-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2019-03-05 228-231-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2019-03-05 228-400-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BILOXI MS
2019-03-05 228-452-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2019-03-05 228-452-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2019-03-05 228-591-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E VANCLEAVE MS
2019-03-05 228-591-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E VANCLEAVE MS
2019-03-05 228-678-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2019-03-05 228-707-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2019-03-05 228-901-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E HURLEY MS
2019-03-05 228-901-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E HURLEY MS
2019-01-28 228-900-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E TANNERWLMS MS
2019-01-28 228-900-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E TANNERWLMS 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.