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
2021-04-20 228-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-465-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-466-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BAYSTLOUIS MS
2021-04-20 228-523-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-523-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-523-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-523-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-523-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-594-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-594-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-20 228-594-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-04-14 228-299-7XXX 7000–7999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-04-14 228-299-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-04-14 228-356-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E HURLEY MS
2021-04-14 228-356-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E HURLEY MS
2021-03-23 228-202-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PASCAGOULA MS
2021-03-23 228-918-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2021-03-23 228-918-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2021-03-12 228-262-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BILOXI MS
2021-03-12 228-262-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E BILOXI MS
2021-03-12 228-262-9XXX 9000–9999Assigned ONVOY, LLC - MS 719E BILOXI MS
2021-03-12 228-269-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E BILOXI MS
2021-03-10 228-465-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J BILOXI MS
2021-02-05 228-332-8XXX 8000–8999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2021-02-05 228-363-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2021-02-05 228-422-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2021-02-05 228-422-4XXX 4000–4999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2021-02-02 228-299-2XXX 2000–2999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-02-02 228-299-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E PEARLINGTN MS
2021-01-22 228-262-2XXX 2000–2999Assigned METROPCS, INC. 5562 BILOXI MS
2021-01-21 228-819-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2021-01-08 228-853-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J VANCLEAVE MS
2021-01-06 228-280-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-280-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-280-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-295-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-325-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-325-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-325-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-325-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-331-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2021-01-06 228-331-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-12-15 228-900-3XXX 3000–3999Assigned ONVOY, LLC - MS 719E TANNERWLMS MS
2020-12-15 228-900-7XXX 7000–7999Assigned 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.