NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 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 810
NEW CINGULAR WIRELESS PCS, LLC - IL 13
EXIANT COMMUNICATIONS 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
2021-02-03 810-474-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C AVOCA MI
2021-02-03 810-510-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C COLUMBIAVL MI
2021-02-03 810-510-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C COLUMBIAVL MI
2021-02-03 810-630-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SWARTZ CRK MI
2021-02-03 810-630-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SWARTZ CRK MI
2021-02-03 810-631-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C OTISVILLE MI
2021-02-03 810-641-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2021-02-03 810-645-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2021-02-03 810-645-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C PT SANILAC MI
2021-02-03 810-669-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CAPAC MI
2021-02-03 810-669-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CAPAC MI
2021-02-03 810-672-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SNOVER MI
2021-02-03 810-674-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C APPLEGATE MI
2021-02-03 810-674-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C APPLEGATE MI
2021-02-03 810-692-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C BYRON MI
2021-02-03 810-692-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BYRON MI
2021-02-03 810-696-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2021-02-03 810-696-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LEXINGTON MI
2021-02-03 810-788-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C YALE MI
2021-02-03 810-788-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C YALE MI
2021-02-03 810-827-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C EMMETT MI
2021-02-03 810-827-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C EMMETT MI
2021-02-03 810-957-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C LINDEN MI
2021-02-03 810-957-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LINDEN MI
2021-02-01 810-204-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-02-01 810-204-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-02-01 810-204-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-02-01 810-204-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2021-01-11 810-295-3XXX 3000–3999Assigned METROPCS, INC. 5562 BRIGHTON MI
2021-01-04 810-634-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C NEWLOTHROP MI
2021-01-04 810-634-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NEWLOTHROP MI
2021-01-04 810-642-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C SMITHS CRK MI
2021-01-04 810-642-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SMITHS CRK MI
2020-12-31 810-544-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2020-12-31 810-657-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2020-12-31 810-710-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CARSONVL MI
2020-12-31 810-884-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2020-12-31 810-884-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2020-12-31 810-884-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MARINECITY MI
2020-12-29 810-212-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2020-12-29 810-212-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2020-12-17 810-788-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YALE MI
2020-12-14 810-645-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PT SANILAC MI
2020-12-14 810-884-8XXX 8000–8999Assigned METROPCS, INC. 5562 MARINECITY MI
2020-12-03 810-881-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PECK MI
2020-11-24 810-657-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CARSONVL MI
2020-11-24 810-682-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SANDUSKY MI
2020-11-23 810-442-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DECKERVL MI
2020-11-23 810-475-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROWN CITY MI
2020-11-23 810-669-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CAPAC MI

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.