NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

24 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 747
ONVOY, LLC - CA 12
EXIANT COMMUNICATIONS LLC 5
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 2
BANDWIDTH.COM CLEC, LLC - CA 2
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
2020-09-20 747-336-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D RESEDA CA
2020-09-17 747-294-5XXX 5000–5999Assigned TWILIO INTERNATIONAL, INC. 506J SNFN SNFN CA
2020-09-16 747-285-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUNLD TJNG CA
2020-09-14 747-296-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2020-09-14 747-296-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2020-09-04 747-295-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-09-04 747-295-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-09-04 747-295-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-08-25 747-724-6XXX 6000–6999Assigned FRACTEL, LLC 965H SNFN GRHL CA
2020-08-13 747-336-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RESEDA CA
2020-08-11 747-295-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NO HOLLYWD CA
2020-08-11 747-356-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NORTHRIDGE CA
2020-08-11 747-377-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F VAN NUYS CA
2020-08-10 747-345-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN PACM CA
2020-07-31 747-236-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFN SPLV CA
2020-07-31 747-294-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2020-07-31 747-294-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2020-07-31 747-294-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2020-07-31 747-744-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2020-07-31 747-744-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2020-07-30 747-293-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2020-07-30 747-293-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CANOGAPARK CA
2020-07-29 747-295-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-07-29 747-295-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-07-29 747-877-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2020-07-29 747-877-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2020-07-28 747-336-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C RESEDA CA
2020-07-28 747-336-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C RESEDA CA
2020-07-28 747-356-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NORTHRIDGE CA
2020-07-28 747-356-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NORTHRIDGE CA
2020-07-28 747-356-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 NORTHRIDGE CA
2020-07-16 747-356-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORTHRIDGE CA
2020-07-10 747-377-7XXX 7000–7999Assigned FRACTEL, LLC 965H VAN NUYS CA
2020-07-08 747-202-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D NORTHRIDGE CA
2020-07-07 747-295-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2020-07-07 747-295-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2020-07-02 747-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H NORTHRIDGE CA
2020-07-02 747-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H NORTHRIDGE CA
2020-07-02 747-977-7XXX 7000–7999Assigned FRACTEL, LLC 965H NO HOLLYWD CA
2020-06-30 747-295-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2020-06-22 747-345-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SNFN PACM CA
2020-06-22 747-345-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SNFN PACM CA
2020-06-22 747-345-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SNFN PACM CA
2020-06-16 747-307-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2020-06-16 747-307-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2020-06-16 747-307-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2020-06-16 747-307-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2020-06-16 747-307-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2020-06-15 747-732-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN SNFN CA
2020-06-12 747-294-8XXX 8000–8999Assigned VONAGE AMERICA LLC 197D SNFN SNFN CA

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.