NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 959
ONVOY, LLC - CT 8
OMNIPOINT COMMUNICATIONS, INC. - CT 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 3
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
2022-09-15 959-238-1XXX 1000–1999Assigned NUSO, LLC 732J PUTNAM CT
2022-09-12 959-599-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-599-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-599-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-599-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-599-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-599-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-710-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-710-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-710-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-09-12 959-995-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2022-09-08 959-261-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 SOUTHINGTN CT
2022-08-29 959-716-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW LONDON CT
2022-08-26 959-228-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CORNWALL CT
2022-08-22 959-610-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HARWINTON CT
2022-08-15 959-206-1XXX 1000–1999Assigned COMMIO, LLC 939H HARTFORD CT
2022-08-15 959-206-3XXX 3000–3999Assigned COMMIO, LLC 939H HARTFORD CT
2022-08-12 959-625-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F CLINTON CT
2022-08-10 959-283-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 GLASTONBY CT
2022-08-09 959-229-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 TORRINGTON CT
2022-08-09 959-229-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 TORRINGTON CT
2022-08-09 959-235-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F BRISTOL CT
2022-08-09 959-235-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F BRISTOL CT
2022-08-09 959-866-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CT 199F CANTON CT
2022-08-08 959-599-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CT 7143 HARTFORD CT
2022-08-01 959-866-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CANTON CT
2022-07-28 959-746-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J OLD SAYBRK CT
2022-07-28 959-936-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LYME CT
2022-07-15 959-243-0XXX 0000–0999Assigned IP HORIZON LLC 515J ROCKVILLE CT
2022-07-15 959-716-0XXX 0000–0999Assigned IP HORIZON LLC 515J NEW LONDON CT
2022-07-15 959-837-1XXX 1000–1999Assigned IP HORIZON LLC 515J NORWICH CT
2022-07-07 959-678-9XXX 9000–9999Assigned AT&T - LOCAL 7421 KILLINGWTH CT
2022-06-14 959-204-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-204-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-221-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-221-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-221-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-255-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-255-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-333-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-529-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-14 959-529-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2022-06-13 959-227-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J CANAAN CT
2022-06-13 959-716-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NEW LONDON CT
2022-06-13 959-716-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J NEW LONDON CT
2022-05-31 959-239-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 OLD SAYBRK CT
2022-05-31 959-625-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CLINTON CT
2022-05-31 959-955-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KILLINGWTH CT
2022-05-17 959-759-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 DEEP RIVER CT
2022-05-17 959-759-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 DEEP RIVER CT

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.