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
2020-06-05 228-438-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-438-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-06-05 228-574-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2020-06-05 228-574-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2020-06-05 228-574-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GULFPORT MS
2020-06-05 228-819-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2020-06-03 228-269-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J BILOXI MS
2020-05-29 228-338-8XXX 8000–8999Assigned HD CARRIER LLC 321J BILOXI MS
2020-05-29 228-338-9XXX 9000–9999Assigned HD CARRIER LLC 321J BILOXI MS
2020-05-26 228-295-8XXX 8000–8999Assigned AIRUS, INC. - MS 459H BILOXI MS
2020-05-06 228-471-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PASCAGOULA MS
2020-05-06 228-471-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PASCAGOULA MS
2020-04-10 228-938-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PASCAGOULA MS
2020-03-25 228-687-9XXX 9000–9999Assigned AIRUS, INC. - MS 459H GULFPORT MS
2020-02-14 228-967-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-14 228-967-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2020-02-06 228-283-2XXX 2000–2999Assigned AIRUS, INC. - MS 459H VANCLEAVE MS
2019-12-20 228-260-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-260-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-264-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2019-12-20 228-469-1XXX 1000–1999Assigned TELNYX LLC 073H BAYSTLOUIS MS
2019-12-12 228-300-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OCEAN SPG MS
2019-12-09 228-346-3XXX 3000–3999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2019-12-09 228-346-4XXX 4000–4999Assigned CELLULAR SOUTH, INC. 6581 GULFPORT MS
2019-12-09 228-819-1XXX 1000–1999Assigned CELLULAR SOUTH, INC. 6581 OCEAN SPG MS
2019-11-06 228-471-8XXX 8000–8999Assigned TELNYX LLC 073H PASCAGOULA MS
2019-10-30 228-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H HURLEY MS
2019-10-30 228-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H HURLEY MS
2019-10-25 228-277-7XXX 7000–7999Assigned FRACTEL, LLC 965H GULFPORT MS
2019-10-11 228-351-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA MS - LLC 458C GULFPORT 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.