NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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, all time — NPA 860
CENTURYLINK COMMUNICATIONS, LLC 48
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
2014-08-26 860-339-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OLD SAYBRK CT
2014-08-26 860-385-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOUTHINGTN CT
2014-08-26 860-517-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLAINVILLE CT
2014-08-26 860-698-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ENFIELD CT
2014-08-26 860-771-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILLIMNTIC CT
2014-08-26 860-792-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PUTNAM CT
2014-08-26 860-921-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TORRINGTON CT
2014-07-02 860-650-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PAWCATUCK CT
2014-06-12 860-365-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J E HAMPTON CT
2014-06-12 860-535-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MYSTIC CT
2014-06-12 860-744-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLINTON CT
2014-06-12 860-893-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWBRITAIN CT
2014-06-12 860-898-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWMILFORD CT
2014-06-09 860-359-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLUMBIA CT
2014-06-09 860-400-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEDYARD CT
2014-06-09 860-407-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JEWETTCITY CT
2014-06-09 860-544-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COVENTRY CT
2014-06-09 860-556-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CANTERBURY CT
2014-06-09 860-603-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLCHESTER CT
2014-06-09 860-850-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NIANTIC CT
2014-06-09 860-864-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STORRS CT
2014-06-06 860-317-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLAINFIELD CT
2014-06-06 860-397-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHARON CT
2014-06-06 860-421-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CANTON CT
2014-06-06 860-483-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATERTOWN CT
2014-06-06 860-499-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CORNWALL CT
2014-06-06 860-596-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEVILLE CT
2014-06-06 860-662-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ESSEX CT
2014-06-06 860-663-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KILLINGWTH CT
2014-06-06 860-733-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARWINTON CT
2014-06-06 860-858-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROCKVILLE CT
2014-06-06 860-879-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEEP RIVER CT
2014-06-06 860-880-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THOMASTON CT
2014-06-06 860-891-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOODUS CT
2014-06-06 860-909-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINSTED CT
2014-06-06 860-932-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DANIELSON CT
2014-06-06 860-935-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOTHOMPSON CT
2014-03-13 860-540-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRISTOL CT
2014-03-13 860-602-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINDSOR CT
2014-03-13 860-773-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FARMINGTON CT
2014-03-13 860-800-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORWICH CT
2014-03-13 860-865-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW LONDON CT
2013-09-04 860-323-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIMSBURY CT
2013-09-04 860-327-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MANCHESTER CT
2013-09-04 860-370-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINDSORLKS CT
2013-09-04 860-430-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLASTONBY CT
2013-09-04 860-785-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARTFORD CT
2013-09-04 860-807-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLETOWN CT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.