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
2016-02-23 781-805-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D RANDOLPH MA
2016-02-23 781-840-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D STOUGHTON MA
2016-02-23 781-840-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D STOUGHTON MA
2016-02-23 781-875-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D HINGHAM MA
2016-02-23 781-875-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D HINGHAM MA
2016-02-23 781-876-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D WAKEFIELD MA
2016-02-23 781-876-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WAKEFIELD MA
2016-02-22 781-384-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D ROCKLAND MA
2016-02-22 781-384-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D ROCKLAND MA
2016-02-19 781-797-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2016-02-19 781-797-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D MARBLEHEAD MA
2016-02-19 781-850-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D STONEHAM MA
2016-02-19 781-850-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D STONEHAM MA
2016-02-17 781-943-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D WELLESLEY MA
2016-02-17 781-943-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WELLESLEY MA
2016-02-11 781-493-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2016-02-10 781-971-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D BRAINTREE MA
2016-02-10 781-980-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D BRAINTREE MA
2016-02-09 781-702-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D NORWOOD MA
2016-02-09 781-702-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D NORWOOD MA
2016-02-09 781-813-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D SAUGUS MA
2016-02-09 781-827-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D MEDFORD MA
2016-02-08 781-217-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D KINGSTON MA
2016-02-08 781-217-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D KINGSTON MA
2016-02-08 781-653-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2016-02-08 781-720-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D MELROSE MA
2016-02-08 781-720-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D MELROSE MA
2016-02-08 781-827-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D MEDFORD MA
2016-02-05 781-819-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2016-02-05 781-819-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2016-02-05 781-873-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D MALDEN MA
2016-02-05 781-873-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D MALDEN MA
2016-02-04 781-493-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D DEDHAM MA
2016-02-04 781-493-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D DEDHAM MA
2016-02-04 781-680-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 NORWOOD MA
2016-02-03 781-422-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 KINGSTON MA
2016-02-03 781-549-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D REVERE MA
2016-02-03 781-951-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D REVERE MA
2016-01-26 781-720-2XXX 2000–2999Assigned HD CARRIER LLC 321J MELROSE MA
2016-01-26 781-922-7XXX 7000–7999Assigned HD CARRIER LLC 321J REVERE MA
2016-01-25 781-645-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ARLINGTON MA
2016-01-14 781-570-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D WINCHESTER MA
2016-01-05 781-732-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LYNN MA
2015-12-31 781-265-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2015-12-30 781-660-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2015-12-30 781-813-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D SAUGUS MA
2015-12-18 781-215-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LYNN MA
2015-12-18 781-430-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2015-12-18 781-472-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WALTHAM MA
2015-12-03 781-404-9XXX 9000–9999Assigned BARR TELL USA, INC. - MA 732H WOBURN 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.