NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 414
BANDWIDTH.COM CLEC, LLC - WI 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
2013-10-15 414-214-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MILWAUKZN4 WI
2013-10-09 414-797-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-04 414-458-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN3 WI
2013-10-03 414-316-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2013-10-02 414-316-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2013-10-02 414-316-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2013-10-02 414-458-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-458-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2013-10-02 414-600-8XXX 8000–8999Assigned TDS METROCOM, LLC 520K MILWAUKZN4 WI
2013-10-02 414-858-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K MILWAUKZN3 WI
2013-10-02 414-865-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-02 414-865-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-02 414-865-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-02 414-865-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-02 414-865-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-10-02 414-865-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2013-09-20 414-249-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-20 414-249-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-20 414-249-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-18 414-595-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-18 414-595-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-18 414-595-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-18 414-595-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-09-10 414-369-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN5 WI
2013-09-10 414-369-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN5 WI
2013-09-06 414-865-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN4 WI
2013-08-23 414-982-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2013-08-15 414-600-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2013-06-11 414-204-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-204-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-204-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-204-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-595-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-595-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-595-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-06-11 414-595-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2013-05-23 414-400-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-23 414-914-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-23 414-914-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-23 414-914-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-23 414-914-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-23 414-914-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2013-05-14 414-585-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2013-05-14 414-585-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C MILWAUKZN1 WI
2013-04-25 414-595-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI

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.