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
2016-11-21 781-759-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WOBURN MA
2016-11-18 781-427-9XXX 9000–9999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F NORWELL MA
2016-11-10 781-350-6XXX 6000–6999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2016-10-31 781-658-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEDFORD MA
2016-10-31 781-658-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEDFORD MA
2016-10-31 781-779-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2016-10-18 781-557-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WAKEFIELD MA
2016-10-14 781-380-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BRAINTREE MA
2016-10-14 781-825-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BURLINGTON MA
2016-10-03 781-355-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D DEDHAM MA
2016-10-03 781-703-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WALTHAM MA
2016-09-30 781-732-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2016-09-27 781-483-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2016-09-27 781-483-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D ARLINGTON MA
2016-09-23 781-427-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2016-09-20 781-402-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2016-09-20 781-402-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2016-09-16 781-425-8XXX 8000–8999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F BURLINGTON MA
2016-09-16 781-779-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 READING MA
2016-09-16 781-989-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F CANTON MA
2016-09-16 781-995-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2016-09-09 781-291-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DUXBURY MA
2016-08-16 781-960-8XXX 8000–8999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2016-08-10 781-448-0XXX 0000–0999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-1XXX 1000–1999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-2XXX 2000–2999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-3XXX 3000–3999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-4XXX 4000–4999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-5XXX 5000–5999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-6XXX 6000–6999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-7XXX 7000–7999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-448-9XXX 9000–9999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-610-0XXX 0000–0999Assigned HD CARRIER LLC 321J ROCKLAND MA
2016-08-10 781-620-9XXX 9000–9999Assigned HD CARRIER LLC 321J MELROSE MA
2016-08-10 781-717-3XXX 3000–3999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-720-5XXX 5000–5999Assigned HD CARRIER LLC 321J MELROSE MA
2016-08-10 781-720-6XXX 6000–6999Assigned HD CARRIER LLC 321J MELROSE MA
2016-08-10 781-838-3XXX 3000–3999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-838-4XXX 4000–4999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-838-5XXX 5000–5999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-838-7XXX 7000–7999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-838-9XXX 9000–9999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-08-10 781-850-9XXX 9000–9999Assigned HD CARRIER LLC 321J STONEHAM MA
2016-08-10 781-954-9XXX 9000–9999Assigned HD CARRIER LLC 321J STONEHAM MA
2016-08-10 781-977-1XXX 1000–1999Assigned HD CARRIER LLC 321J WINCHESTER MA
2016-07-21 781-674-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2016-07-21 781-703-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2016-07-21 781-759-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WOBURN MA
2016-07-21 781-857-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ROCKLAND MA
2016-07-11 781-404-0XXX 0000–0999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F 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.