NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 901
ONVOY, LLC - TN 4
NEW CINGULAR WIRELESS PCS, LLC - GA 1
E. RITTER COMMUNICATIONS, LLC 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
2022-02-01 901-663-5XXX 5000–5999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2022-02-01 901-663-6XXX 6000–6999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2022-02-01 901-663-7XXX 7000–7999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2022-02-01 901-663-8XXX 8000–8999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2022-02-01 901-663-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2022-01-20 901-660-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAGRANGE TN
2022-01-19 901-621-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F WESTWHITEV TN
2022-01-19 901-627-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F MOSCOW TN
2022-01-07 901-659-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-07 901-659-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-06 901-464-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2022-01-06 901-519-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MEMPHIS TN
2021-12-30 901-613-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2021-12-30 901-613-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARLINGTON TN
2021-12-21 901-464-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 MEMPHIS TN
2021-12-13 901-520-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILLINGTON TN
2021-12-13 901-613-7XXX 7000–7999Assigned METROPCS, INC. 5562 ARLINGTON TN
2021-12-07 901-656-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J COLLIERVL TN
2021-12-03 901-657-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SOMERVILLE TN
2021-12-03 901-657-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SOMERVILLE TN
2021-11-23 901-656-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F COLLIERVL TN
2021-11-17 901-658-0XXX 0000–0999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-1XXX 1000–1999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-2XXX 2000–2999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-3XXX 3000–3999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-4XXX 4000–4999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-5XXX 5000–5999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-6XXX 6000–6999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-7XXX 7000–7999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-8XXX 8000–8999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-17 901-658-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-16 901-547-5XXX 5000–5999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-16 901-565-1XXX 1000–1999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-16 901-565-4XXX 4000–4999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-11-15 901-656-0XXX 0000–0999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-11-15 901-656-1XXX 1000–1999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-11-15 901-656-2XXX 2000–2999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-11-15 901-656-9XXX 9000–9999Assigned POWERTEL MEMPHIS LICENSES, INC. 7474 COLLIERVL TN
2021-11-05 901-593-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SOMERVILLE TN
2021-11-02 901-621-9XXX 9000–9999Assigned PEERLESS NETWORK OF TENNESSEE, LLC - TN 276F WESTWHITEV TN
2021-10-29 901-613-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F ARLINGTON TN
2021-10-29 901-613-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F ARLINGTON TN

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.