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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2018-12-07 781-336-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 KINGSTON MA
2018-12-03 781-299-5XXX 5000–5999Assigned METROPCS, INC. 5562 LYNN MA
2018-12-03 781-299-6XXX 6000–6999Assigned METROPCS, INC. 5562 LYNN MA
2018-11-30 781-497-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WOBURN MA
2018-11-15 781-385-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E HINGHAM MA
2018-11-09 781-633-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-11-09 781-633-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-11-09 781-930-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2018-11-09 781-980-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2018-11-09 781-980-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2018-11-07 781-658-4XXX 4000–4999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 MEDFORD MA
2018-10-31 781-482-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2018-10-31 781-918-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2018-10-19 781-227-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2018-10-19 781-227-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2018-10-09 781-571-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-10-09 781-571-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-09-13 781-943-7XXX 7000–7999Assigned TC SYSTEMS, INC. 7135 WELLESLEY MA
2018-09-05 781-298-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-08-30 781-675-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J NEEDHAM MA
2018-08-21 781-490-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NORWELL MA
2018-08-16 781-823-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 REVERE MA
2018-08-09 781-846-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D KINGSTON MA
2018-08-06 781-980-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 BRAINTREE MA
2018-08-03 781-357-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2018-07-09 781-496-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2018-07-09 781-496-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2018-06-21 781-299-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 LYNN MA
2018-06-11 781-571-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-06-11 781-571-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 CANTON MA
2018-05-17 781-607-5XXX 5000–5999Assigned ONVOY, LLC - MA 892D RANDOLPH MA
2018-05-09 781-747-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 DEDHAM MA
2018-05-09 781-918-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEXINGTON MA
2018-05-02 781-660-7XXX 7000–7999Assigned ONVOY, LLC - MA 892D WEYMOUTH MA
2018-04-27 781-299-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LYNN MA
2018-04-19 781-236-6XXX 6000–6999Assigned TELNYX LLC 073H COHASSET MA
2018-04-13 781-490-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2018-04-13 781-528-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2018-04-13 781-528-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOBURN MA
2018-04-11 781-660-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WEYMOUTH MA
2018-03-28 781-423-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ROCKLAND MA
2018-03-20 781-299-7XXX 7000–7999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F LYNN MA
2018-03-20 781-487-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WALTHAM MA
2018-03-20 781-497-6XXX 6000–6999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F WOBURN MA
2018-03-16 781-531-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2018-03-16 781-531-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2018-03-16 781-531-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2018-03-16 781-531-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2018-03-16 781-531-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM MA
2018-03-16 781-531-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 NEEDHAM 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.