NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 860
ONVOY, LLC - CT 12
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 2
PEERLESS NETWORK OF CONNECTICUT, LLC - CT 1
OMNIPOINT COMMUNICATIONS, INC. - CT 1
BANDWIDTH.COM CLEC, LLC - CT 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
2003-07-21 860-266-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 GLASTONBY CT
2003-07-21 860-269-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 FARMINGTON CT
2003-07-21 860-288-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 MANCHESTER CT
2003-07-21 860-455-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 WILLIMNTIC CT
2003-07-21 860-863-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 SOUTHINGTN CT
2003-07-21 860-866-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 TORRINGTON CT
2003-07-10 860-367-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NORWICH CT
2003-07-10 860-748-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-07-10 860-748-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-07-10 860-748-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-07-10 860-748-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-07-10 860-748-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-07-10 860-933-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2003-07-09 860-474-9XXX 9000–9999Assigned AT&T - LOCAL 7421 MANCHESTER CT
2003-06-30 860-230-7XXX 7000–7999Assigned METROPCS, INC. 5562 PLAINFIELD CT
2003-06-30 860-238-5XXX 5000–5999Assigned CSC VOICE, LLC 612K WINSTED CT
2003-06-30 860-752-8XXX 8000–8999Assigned METROPCS, INC. 5562 WINDSORLKS CT
2003-06-27 860-818-0XXX 0000–0999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-06-27 860-818-3XXX 3000–3999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-06-27 860-818-5XXX 5000–5999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-06-27 860-818-7XXX 7000–7999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-06-27 860-818-8XXX 8000–8999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-06-20 860-248-3XXX 3000–3999Assigned CSC VOICE, LLC 612K CORNWALL CT
2003-06-20 860-484-4XXX 4000–4999Assigned CSC VOICE, LLC 612K THOMASTON CT
2003-06-06 860-417-3XXX 3000–3999Assigned CSC VOICE, LLC 612K WATERTOWN CT
2003-06-05 860-287-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW LONDON CT
2003-06-04 860-748-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-06-03 860-618-3XXX 3000–3999Assigned CSC VOICE, LLC 612K TORRINGTON CT
2003-06-03 860-748-0XXX 0000–0999Assigned METROPCS, INC. 5562 HARTFORD CT
2003-05-29 860-605-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HARWINTON CT
2003-05-16 860-237-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWICH CT
2003-05-16 860-237-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWICH CT
2003-05-08 860-481-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PUTNAM CT
2003-05-08 860-581-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ESSEX CT
2003-05-02 860-287-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW LONDON CT
2003-05-02 860-367-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NORWICH CT
2003-05-02 860-575-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 OLD SAYBRK CT
2003-05-02 860-874-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-05-02 860-874-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-04-16 860-209-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 HARTFORD CT
2003-04-16 860-209-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 HARTFORD CT
2003-04-14 860-351-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PLAINVILLE CT
2003-04-14 860-874-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-04-14 860-874-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-04-14 860-874-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-04-14 860-874-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2003-04-14 860-917-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NORWICH CT
2003-03-14 860-209-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 HARTFORD CT
2003-03-14 860-209-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 HARTFORD CT
2003-03-14 860-209-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 HARTFORD 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.