NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 774
NEW CINGULAR WIRELESS PCS, LLC - DC 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 3
OMNIPOINT MIAMI E LICENSE, LLC 2
PEERLESS NETWORK OF MASSACHUSETTS, LLC - 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
2019-06-25 774-772-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 AUBURN MA
2019-06-21 774-393-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SHREWSBURY MA
2019-06-21 774-608-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 PLYMOUTH MA
2019-06-19 774-391-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2019-06-19 774-391-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2019-06-14 774-849-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ROCHESTER MA
2019-06-07 774-737-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MILFORD MA
2019-06-05 774-358-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HARWICH MA
2019-06-04 774-273-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EASTON MA
2019-06-03 774-374-8XXX 8000–8999Assigned ONVOY, LLC - MA 892D MARLBORO MA
2019-06-03 774-374-9XXX 9000–9999Assigned ONVOY, LLC - MA 892D MARLBORO MA
2019-06-03 774-399-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WESTBORO MA
2019-06-03 774-409-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D TAUNTON MA
2019-06-03 774-504-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D TAUNTON MA
2019-06-03 774-946-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WHITINSVL MA
2019-06-03 774-946-6XXX 6000–6999Assigned ONVOY, LLC - MA 892D WHITINSVL MA
2019-05-21 774-256-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALPOLE MA
2019-05-21 774-374-1XXX 1000–1999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F MARLBORO MA
2019-05-21 774-801-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 ORLEANS MA
2019-05-15 774-389-0XXX 0000–0999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-05-15 774-389-1XXX 1000–1999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-05-15 774-389-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-05-15 774-389-3XXX 3000–3999Assigned ONVOY, LLC - MA 892D WORCESTER MA
2019-05-14 774-399-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WESTBORO MA
2019-05-14 774-717-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E CHILMARK MA
2019-05-09 774-570-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SHREWSBURY MA
2019-05-02 774-497-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NO SWANSEA MA
2019-05-01 774-250-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EASTON MA
2019-05-01 774-379-3XXX 3000–3999Assigned METROPCS, INC. 5562 FALL RIVER MA
2019-04-25 774-447-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E VINEYRDHVN MA
2019-04-25 774-516-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E EBRIDGEWTR MA
2019-04-17 774-380-3XXX 3000–3999Assigned TELNYX LLC 073H BRIDGEWTR MA
2019-04-11 774-712-2XXX 2000–2999Assigned ONVOY, LLC - MA 892D ROCHESTER MA
2019-03-29 774-335-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 MILLIS MA
2019-03-27 774-374-0XXX 0000–0999Assigned IP HORIZON LLC 515J MARLBORO MA
2019-03-27 774-379-6XXX 6000–6999Assigned IP HORIZON LLC 515J FALL RIVER MA
2019-03-27 774-379-8XXX 8000–8999Assigned IP HORIZON LLC 515J FALL RIVER MA
2019-03-27 774-612-0XXX 0000–0999Assigned IP HORIZON LLC 515J FALMOUTH MA
2019-03-27 774-612-2XXX 2000–2999Assigned IP HORIZON LLC 515J FALMOUTH MA
2019-03-27 774-703-9XXX 9000–9999Assigned IP HORIZON LLC 515J LEICESTER MA
2019-03-27 774-765-2XXX 2000–2999Assigned IP HORIZON LLC 515J FOXBORO MA
2019-03-27 774-765-3XXX 3000–3999Assigned IP HORIZON LLC 515J FOXBORO MA
2019-03-27 774-804-4XXX 4000–4999Assigned IP HORIZON LLC 515J MILFORD MA
2019-03-22 774-387-6XXX 6000–6999Assigned TC SYSTEMS, INC. 7135 BLACKSTONE MA
2019-03-18 774-384-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 MIDDLEBORO MA
2019-03-11 774-380-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2019-02-28 774-552-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J HYANNIS MA
2019-02-28 774-608-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MA
2019-02-18 774-379-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FALL RIVER MA
2019-02-08 774-500-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J DIGHTON 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.