NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 858
ONVOY, LLC - CA 20
EXIANT COMMUNICATIONS LLC 2
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 1
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 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
2026-07-29 858-445-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNDG MRMS CA
2026-07-29 858-445-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNDG MRMS CA
2026-07-24 858-319-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA JOLLA CA
2026-07-24 858-409-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA JOLLA CA
2026-07-24 858-417-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2026-07-24 858-417-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2026-07-24 858-440-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA MESA CA
2026-07-24 858-440-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LA MESA CA
2026-07-24 858-440-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C LA MESA CA
2026-07-24 858-713-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA JOLLA CA
2026-07-24 858-951-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RNCHOSANFE CA
2026-07-23 858-448-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORONADO CA
2026-07-21 858-898-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C CORONADO CA
2026-07-17 858-440-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2026-07-17 858-440-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LA MESA CA
2026-07-16 858-421-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 RNCHOBRNDO CA
2026-07-16 858-707-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG LVTA CA
2026-07-14 858-423-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNDG SNDG CA
2026-06-30 858-407-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2026-06-30 858-407-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CHULAVISTA CA
2026-06-26 858-393-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C DEL MAR CA
2026-06-26 858-393-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C DEL MAR CA
2026-06-26 858-426-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-06-26 858-441-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-06-26 858-441-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-06-26 858-441-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-06-26 858-441-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-06-01 858-394-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNDG LVTA CA
2026-06-01 858-394-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNDG LVTA CA
2026-06-01 858-417-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NATIONALCY CA
2026-06-01 858-421-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C RNCHOBRNDO CA
2026-06-01 858-881-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNDG SNDG CA
2026-05-29 858-713-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C LA JOLLA CA
2026-05-29 858-713-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LA JOLLA CA
2026-05-22 858-381-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RNCHOSANFE CA
2026-05-21 858-393-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C DEL MAR CA
2026-05-21 858-426-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C EL CAJON CA
2026-05-21 858-445-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNDG MRMS CA
2026-05-21 858-447-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C RNCHOPNQTS CA
2026-05-20 858-338-6XXX 6000–6999Assigned TELNYX LLC 073H HARBSNALPN CA
2026-05-20 858-881-1XXX 1000–1999Assigned 8X8, INC. 193E SNDG SNDG CA
2026-05-08 858-443-3XXX 3000–3999Assigned HD CARRIER LLC 321J CHULAVISTA CA
2026-05-08 858-443-6XXX 6000–6999Assigned HD CARRIER LLC 321J CHULAVISTA CA
2026-05-08 858-443-7XXX 7000–7999Assigned HD CARRIER LLC 321J CHULAVISTA CA
2026-05-08 858-443-8XXX 8000–8999Assigned HD CARRIER LLC 321J CHULAVISTA CA
2026-04-23 858-418-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG SNDG CA
2026-04-23 858-425-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG SNDG CA
2026-04-23 858-600-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG SNDG CA
2026-04-23 858-600-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG SNDG CA
2026-04-23 858-600-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 SNDG SNDG CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.