NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

34 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 442
NEW CINGULAR WIRELESS PCS, LLC 14
ONVOY, LLC - CA 10
HD CARRIER LLC 4
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-11-14 442-338-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-11-14 442-338-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-11-11 442-205-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F YUCCA VLY CA
2020-11-11 442-214-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F TWNTYNPLMS CA
2020-11-11 442-318-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LEE VINING CA
2020-11-11 442-432-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CALEXICO CA
2020-11-11 442-440-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LENWOOD CA
2020-11-11 442-683-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J HOMESTDVLY CA
2020-11-09 442-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H TRONA CA
2020-11-09 442-833-3XXX 3000–3999Assigned FRACTEL, LLC 965H JOSHUATREE CA
2020-11-09 442-955-5XXX 5000–5999Assigned FRACTEL, LLC 965H VICTORVL CA
2020-11-06 442-744-4XXX 4000–4999Assigned FRACTEL, LLC 965H BRIDGEPORT CA
2020-11-06 442-966-6XXX 6000–6999Assigned FRACTEL, LLC 965H RIDGECREST CA
2020-11-05 442-642-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C NEWBERRY CA
2020-11-05 442-642-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NEWBERRY CA
2020-10-29 442-316-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
2020-10-28 442-318-0XXX 0000–0999Assigned TELNYX LLC 073H LEE VINING CA
2020-10-27 442-388-1XXX 1000–1999Assigned TELNYX LLC 073H DESERT CTR CA
2020-10-26 442-214-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWNTYNPLMS CA
2020-10-25 442-339-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OCSD CRLS CA
2020-10-24 442-309-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BARSTOW CA
2020-10-21 442-788-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DSERTHTSPG CA
2020-10-21 442-788-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DSERTHTSPG CA
2020-10-15 442-224-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VISTA CA
2020-10-15 442-238-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2020-10-15 442-238-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL CENTRO CA
2020-10-14 442-477-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RIDGECREST CA
2020-10-14 442-477-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RIDGECREST CA
2020-10-14 442-599-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2020-10-14 442-599-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 INDIO CA
2020-10-13 442-207-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FALLBROOK CA
2020-10-12 442-332-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-10-12 442-332-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-10-12 442-332-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-10-12 442-332-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-10-12 442-332-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2020-10-09 442-217-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 VALLEY CTR CA
2020-10-05 442-440-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LENWOOD CA
2020-10-05 442-440-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C LENWOOD CA
2020-09-29 442-288-1XXX 1000–1999Assigned METROPCS, INC. 5562 OCSD PDTN CA
2020-09-29 442-388-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F DESERT CTR CA
2020-09-29 442-443-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MORONGOVLY CA
2020-09-24 442-322-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2020-09-24 442-322-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2020-09-24 442-322-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2020-09-24 442-322-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BRAWLEY CA
2020-09-23 442-524-5XXX 5000–5999Assigned TWILIO INTERNATIONAL, INC. 506J VTVL ADLN CA
2020-09-18 442-346-2XXX 2000–2999Assigned FRACTEL, LLC 965H BENTON CA
2020-09-18 442-388-8XXX 8000–8999Assigned FRACTEL, LLC 965H DESERT CTR CA
2020-09-18 442-399-9XXX 9000–9999Assigned FRACTEL, LLC 965H EL MIRAGE 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.