NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 513
BANDWIDTH.COM CLEC, LLC - OH 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-01-26 513-800-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-01-26 513-800-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-01-26 513-800-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-01-12 513-800-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-01-12 513-800-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-01-12 513-800-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-01-10 513-400-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-01-10 513-400-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-01-07 513-468-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C TRENTON OH
2011-01-06 513-575-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2011-01-06 513-707-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2011-01-06 513-716-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2011-01-06 513-795-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2011-01-06 513-795-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2011-01-06 513-795-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2011-01-05 513-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-05 513-500-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-05 513-500-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-409-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LEBANON OH
2011-01-04 513-443-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHANY OH
2011-01-04 513-445-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MASON OH
2011-01-04 513-453-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2011-01-04 513-454-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2011-01-04 513-500-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-01-04 513-500-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2010-12-29 513-268-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SO LEBANON OH
2010-12-29 513-400-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2010-12-29 513-400-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2010-12-29 513-400-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2010-12-29 513-430-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2010-12-29 513-430-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2010-12-17 513-402-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MONROE OH
2010-12-17 513-849-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C MIDDLETOWN OH
2010-12-16 513-400-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-16 513-400-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-16 513-400-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-16 513-400-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-10 513-430-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-10 513-430-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2010-12-09 513-278-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2010-12-09 513-286-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CLERMONT OH
2010-12-09 513-716-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2010-12-02 513-649-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN OH
2010-11-09 513-430-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH

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.