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
2004-12-21 860-619-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WASHINGTON CT
2004-12-21 860-799-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWMILFORD CT
2004-12-21 860-921-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TORRINGTON CT
2004-12-20 860-967-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 HARTFORD CT
2004-12-16 860-477-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STORRS CT
2004-12-14 860-237-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 NORWICH CT
2004-12-14 860-348-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 NEWBRITAIN CT
2004-12-14 860-420-7XXX 7000–7999Assigned METROPCS, INC. 5562 STORRS CT
2004-12-14 860-499-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 CORNWALL CT
2004-12-14 860-639-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWICH CT
2004-12-14 860-706-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 HARTFORD CT
2004-12-08 860-287-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW LONDON CT
2004-12-08 860-287-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 NEW LONDON CT
2004-12-08 860-882-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2004-12-08 860-882-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 HARTFORD CT
2004-12-08 860-942-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2004-12-08 860-942-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 WILLIMNTIC CT
2004-12-06 860-910-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 NEW LONDON CT
2004-11-22 860-245-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MYSTIC CT
2004-11-22 860-255-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON CT
2004-11-22 860-259-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEWBRITAIN CT
2004-11-22 860-261-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BRISTOL CT
2004-11-22 860-316-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MIDDLETOWN CT
2004-11-22 860-322-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DEEP RIVER CT
2004-11-22 860-326-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEW LONDON CT
2004-11-22 860-339-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J OLD SAYBRK CT
2004-11-22 860-351-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PLAINVILLE CT
2004-11-22 860-381-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LEDYARD CT
2004-11-22 860-397-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SHARON CT
2004-11-22 860-452-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KILLINGWTH CT
2004-11-22 860-453-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CANAAN CT
2004-11-22 860-495-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PAWCATUCK CT
2004-11-22 860-542-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NORFOLK CT
2004-11-22 860-552-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLINTON CT
2004-11-22 860-554-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HADDAM CT
2004-11-22 860-581-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ESSEX CT
2004-11-22 860-591-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J JEWETTCITY CT
2004-11-22 860-596-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LAKEVILLE CT
2004-11-15 860-365-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 E HAMPTON CT
2004-11-15 860-415-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 MYSTIC CT
2004-11-15 860-516-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 BRISTOL CT
2004-11-15 860-517-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 PLAINVILLE CT
2004-11-15 860-553-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 STORRS CT
2004-11-15 860-591-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 JEWETTCITY CT
2004-11-15 860-631-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 WATERTOWN CT
2004-11-15 860-691-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 NIANTIC CT
2004-11-15 860-787-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 WINDSOR CT
2004-11-15 860-896-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 ROCKVILLE CT
2004-11-15 860-946-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CT 4800 NEWMILFORD CT
2004-11-05 860-784-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J SIMSBURY 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.