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
2019-04-11 781-496-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WOBURN MA
2019-04-11 781-509-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D READING MA
2019-04-11 781-509-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D READING MA
2019-04-11 781-528-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D WOBURN MA
2019-04-11 781-680-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D NORWOOD MA
2019-04-11 781-680-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D NORWOOD MA
2019-04-05 781-621-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WAKEFIELD MA
2019-04-01 781-989-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2019-03-27 781-276-9XXX 9000–9999Assigned IP HORIZON LLC 515J LEXINGTON MA
2019-03-27 781-490-1XXX 1000–1999Assigned IP HORIZON LLC 515J NORWELL MA
2019-03-14 781-300-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 RANDOLPH MA
2019-03-04 781-633-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2019-03-04 781-713-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2019-03-04 781-737-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2019-03-04 781-737-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2019-02-14 781-303-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2019-02-04 781-512-5XXX 5000–5999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F LINCOLN MA
2019-02-01 781-619-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NORWOOD MA
2019-01-25 781-468-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D DEDHAM MA
2019-01-25 781-923-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D COHASSET MA
2019-01-25 781-923-4XXX 4000–4999Assigned ONVOY, LLC - MA 892D COHASSET MA
2019-01-24 781-303-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D BRAINTREE MA
2019-01-24 781-394-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D BRAINTREE MA
2019-01-24 781-423-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D ROCKLAND MA
2019-01-24 781-423-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D ROCKLAND MA
2019-01-24 781-488-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2019-01-24 781-488-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2019-01-24 781-531-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D NEEDHAM MA
2019-01-24 781-531-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D NEEDHAM MA
2019-01-24 781-660-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WEYMOUTH MA
2019-01-24 781-750-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2019-01-24 781-750-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D BURLINGTON MA
2019-01-24 781-755-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D WALTHAM MA
2019-01-24 781-755-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D WALTHAM MA
2019-01-23 781-512-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D LINCOLN MA
2019-01-23 781-512-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D LINCOLN MA
2019-01-23 781-515-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D LEXINGTON MA
2019-01-23 781-515-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D LEXINGTON MA
2019-01-23 781-713-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D CANTON MA
2019-01-23 781-713-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D CANTON MA
2019-01-23 781-798-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D KINGSTON MA
2019-01-23 781-798-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D KINGSTON MA
2019-01-22 781-773-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D HULL MA
2019-01-22 781-919-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D HINGHAM MA
2019-01-22 781-919-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D HINGHAM MA
2019-01-22 781-925-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D HULL MA
2019-01-15 781-798-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 KINGSTON MA
2019-01-14 781-777-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ARLINGTON MA
2018-12-20 781-490-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2018-12-20 781-498-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEDFORD 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.