NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 301
ONVOY, LLC - MD 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
2022-02-14 301-597-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WALDORF MD
2022-01-24 301-597-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALDORF MD
2022-01-24 301-597-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALDORF MD
2021-12-08 301-820-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GAITHERSBG MD
2021-10-11 301-234-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN16 MD
2021-10-11 301-244-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WSHNGTNZN3 MD
2021-10-11 301-278-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WSHNGTNZN5 MD
2021-10-11 301-288-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN12 MD
2021-10-11 301-358-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z15 MD
2021-10-11 301-363-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DAMASCS240 MD
2021-10-11 301-703-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MOUNT AIRY MD
2021-10-11 301-715-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z15 MD
2021-10-11 301-810-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BUCKEYSTN MD
2021-10-11 301-821-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H LAUREL236 MD
2021-10-11 301-823-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z13 MD
2021-10-11 301-876-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CUMBERLAND MD
2021-10-11 301-889-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WSNG238Z14 MD
2021-10-11 301-902-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z13 MD
2021-10-11 301-902-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z13 MD
2021-10-11 301-953-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z13 MD
2021-10-11 301-953-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WSNG236Z13 MD
2021-10-11 301-970-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNG238Z14 MD
2021-08-04 301-309-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSNGTNZN10 MD
2021-08-02 301-321-1XXX 1000–1999Assigned COMMIO, LLC 939H WSNGTNZN11 MD
2021-06-30 301-659-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALDORF MD
2021-06-25 301-936-0XXX 0000–0999Assigned TELNYX LLC 073H HAGERSTOWN MD
2021-06-21 301-536-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J LEONARDTN MD
2021-06-14 301-264-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D MT SAVAGE MD
2021-05-13 301-893-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J WSHNGTNZN6 MD
2021-04-24 301-307-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNG238Z13 MD
2021-04-22 301-235-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN16 MD
2021-04-22 301-238-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN16 MD
2021-04-22 301-372-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN16 MD
2021-04-22 301-719-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WSNGTNZN16 MD
2021-03-03 301-297-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WSNGTNZN16 MD
2021-03-03 301-329-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D ASHTON238 MD
2021-01-19 301-220-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2021-01-19 301-313-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2021-01-19 301-591-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D GAITHERSBG MD
2020-11-04 301-547-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D WSHNGTNZN2 MD
2020-11-04 301-701-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2020-11-04 301-701-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2020-11-04 301-701-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2020-11-04 301-701-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2020-11-04 301-753-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WSHNGTNZN6 MD
2020-11-04 301-753-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D WSHNGTNZN6 MD
2020-11-04 301-902-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D WSNG236Z13 MD
2020-11-04 301-960-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D WSHNGTNZN3 MD
2020-10-09 301-709-1XXX 1000–1999Assigned ONVOY, LLC - MD 876D CUMBERLAND MD
2020-10-09 301-709-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D CUMBERLAND MD

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.