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
2023-03-27 228-422-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PASCAGOULA MS
2023-03-27 228-588-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HURLEY MS
2023-03-27 228-910-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E BILOXI MS
2023-03-24 228-240-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GULFPORT MS
2023-03-15 228-227-1XXX 1000–1999Assigned NUSO, LLC 732J BILOXI MS
2023-03-09 228-910-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 BILOXI MS
2023-03-07 228-225-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2023-03-03 228-679-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2023-03-03 228-679-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2023-03-03 228-679-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2023-03-02 228-278-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2023-03-02 228-278-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2023-03-02 228-278-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2023-02-27 228-203-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2023-02-21 228-212-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2023-02-21 228-212-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H TANNERWLMS MS
2023-02-20 228-828-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-02-20 228-828-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-02-15 228-828-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E BILOXI MS
2023-02-15 228-828-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E BILOXI MS
2023-02-10 228-225-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PASSCHRSTN MS
2023-02-06 228-372-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2023-01-13 228-934-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PASCAGOULA MS
2022-12-15 228-274-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2022-12-15 228-274-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2022-12-15 228-574-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2022-12-15 228-574-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2022-12-15 228-895-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-12-15 228-895-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2022-11-21 228-828-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E BILOXI MS
2022-11-21 228-828-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E BILOXI MS
2022-11-17 228-225-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PASSCHRSTN MS
2022-11-16 228-336-2XXX 2000–2999Assigned COMMIO, LLC 939H MOSS POINT MS
2022-11-16 228-696-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PASCAGOULA MS
2022-11-15 228-299-4XXX 4000–4999Assigned COMMIO, LLC 939H PEARLINGTN MS
2022-11-15 228-853-0XXX 0000–0999Assigned COMMIO, LLC 939H VANCLEAVE MS
2022-11-09 228-367-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2022-11-03 228-356-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E HURLEY MS
2022-11-02 228-288-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2022-11-02 228-288-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2022-11-02 228-586-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2022-10-12 228-355-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PASCAGOULA MS
2022-10-12 228-372-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PASCAGOULA 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.