NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 781
NEW CINGULAR WIRELESS PCS, LLC - DC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 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
2021-12-03 781-809-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 DEDHAM MA
2021-12-01 781-874-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2021-12-01 781-874-5XXX 5000–5999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2021-11-17 781-458-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEXINGTON MA
2021-11-17 781-597-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LEXINGTON MA
2021-11-11 781-528-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WOBURN MA
2021-11-11 781-577-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2021-11-04 781-488-9XXX 9000–9999Assigned IP HORIZON LLC 515J ARLINGTON MA
2021-11-04 781-538-1XXX 1000–1999Assigned IP HORIZON LLC 515J LEXINGTON MA
2021-11-04 781-627-1XXX 1000–1999Assigned IP HORIZON LLC 515J MALDEN MA
2021-11-04 781-653-1XXX 1000–1999Assigned IP HORIZON LLC 515J BURLINGTON MA
2021-11-04 781-739-1XXX 1000–1999Assigned IP HORIZON LLC 515J CANTON MA
2021-11-04 781-783-9XXX 9000–9999Assigned IP HORIZON LLC 515J HINGHAM MA
2021-11-04 781-796-3XXX 3000–3999Assigned IP HORIZON LLC 515J BRAINTREE MA
2021-11-02 781-230-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LEXINGTON MA
2021-11-02 781-230-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LEXINGTON MA
2021-11-02 781-347-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ROCKLAND MA
2021-11-02 781-378-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SCITUATE MA
2021-11-02 781-384-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ROCKLAND MA
2021-11-02 781-412-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SCITUATE MA
2021-11-02 781-462-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MELROSE MA
2021-11-02 781-501-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NORWOOD MA
2021-11-02 781-501-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NORWOOD MA
2021-11-02 781-507-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H STONEHAM MA
2021-11-02 781-507-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H STONEHAM MA
2021-11-02 781-517-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MELROSE MA
2021-11-02 781-537-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WOBURN MA
2021-11-02 781-537-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WOBURN MA
2021-11-02 781-621-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WAKEFIELD MA
2021-11-02 781-677-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H READING MA
2021-11-02 781-679-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H KINGSTON MA
2021-11-02 781-683-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WAKEFIELD MA
2021-11-02 781-785-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H RANDOLPH MA
2021-11-02 781-785-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H RANDOLPH MA
2021-11-02 781-804-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H HINGHAM MA
2021-11-02 781-804-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H HINGHAM MA
2021-11-02 781-818-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STOUGHTON MA
2021-11-02 781-818-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H STOUGHTON MA
2021-11-02 781-889-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MARSHFIELD MA
2021-11-02 781-889-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MARSHFIELD MA
2021-11-02 781-898-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NEEDHAM MA
2021-11-02 781-898-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NEEDHAM MA
2021-11-01 781-887-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H HANOVER MA
2021-11-01 781-887-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H HANOVER MA
2021-10-29 781-746-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CANTON MA
2021-10-29 781-746-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CANTON MA
2021-10-29 781-757-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BURLINGTON MA
2021-10-29 781-757-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BURLINGTON MA
2021-10-29 781-926-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BRAINTREE MA
2021-10-29 781-926-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BRAINTREE MA

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.