NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 414
ONVOY, LLC - WI 3
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
2022-02-04 414-309-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2022-01-20 414-317-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-20 414-317-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-16 414-338-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-16 414-338-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2022-01-07 414-742-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MILWAUKZN4 WI
2022-01-04 414-338-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2021-12-15 414-338-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2021-12-15 414-338-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2021-12-15 414-363-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2021-12-15 414-363-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2021-12-15 414-363-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2021-11-22 414-338-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN1 WI
2021-11-22 414-338-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN1 WI
2021-11-15 414-338-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2021-10-29 414-285-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2021-10-29 414-293-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2021-10-29 414-295-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN5 WI
2021-10-29 414-374-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2021-10-29 414-567-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2021-10-25 414-432-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN5 WI
2021-10-25 414-432-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN5 WI
2021-10-21 414-432-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2021-10-21 414-432-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2021-10-21 414-432-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2021-10-21 414-432-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2021-10-20 414-268-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN3 WI
2021-10-20 414-268-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN3 WI
2021-10-20 414-285-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-20 414-285-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2021-10-19 414-285-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2021-10-13 414-293-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN1 WI
2021-10-13 414-966-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN1 WI
2021-10-13 414-966-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN1 WI
2021-10-13 414-966-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN1 WI
2021-10-13 414-966-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MILWAUKZN1 WI
2021-09-29 414-432-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI

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.