NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 515
ONVOY, LLC - IA 5
AUREON COMMUNICATIONS, LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 1
BANDWIDTH.COM CLEC, LLC - IA 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-08-10 515-217-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-10 515-217-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-10 515-217-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-03 515-416-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-03 515-416-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-03 515-416-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2020-08-03 515-516-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F BLAIRSBURG IA
2020-08-03 515-516-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BLAIRSBURG IA
2020-07-21 515-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H OTHO IA
2020-07-21 515-944-4XXX 4000–4999Assigned FRACTEL, LLC 965H WEST BEND IA
2020-07-16 515-466-6XXX 6000–6999Assigned FRACTEL, LLC 965H WHITTEMORE IA
2020-07-15 515-316-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GILMORE CY IA
2020-07-15 515-385-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F CLARION IA
2020-07-15 515-395-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F ALGONA IA
2020-07-15 515-417-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F FORT DODGE IA
2020-07-15 515-498-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F LIVERMORE IA
2020-07-15 515-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H COLFAX IA
2020-07-15 515-585-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F VAN METER IA
2020-07-14 515-513-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J DES MOINES IA
2020-06-18 515-514-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DES MOINES IA
2020-06-18 515-514-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DES MOINES IA
2020-06-18 515-514-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DES MOINES IA
2020-06-18 515-514-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H DES MOINES IA
2020-05-14 515-766-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2020-05-05 515-355-0XXX 0000–0999Assigned TELNYX LLC 073H WILLIAMS IA
2020-05-05 515-405-0XXX 0000–0999Assigned TELNYX LLC 073H RENWICK IA
2020-05-05 515-420-8XXX 8000–8999Assigned TELNYX LLC 073H POLK CITY IA
2020-05-05 515-454-9XXX 9000–9999Assigned TELNYX LLC 073H STUART IA
2020-05-05 515-466-0XXX 0000–0999Assigned TELNYX LLC 073H WHITTEMORE IA
2020-05-05 515-474-0XXX 0000–0999Assigned TELNYX LLC 073H WINTERSET IA
2020-05-05 515-481-2XXX 2000–2999Assigned TELNYX LLC 073H PLEASANTVL IA
2020-05-05 515-495-0XXX 0000–0999Assigned TELNYX LLC 073H PRAIRIE CY IA
2020-05-05 515-585-4XXX 4000–4999Assigned TELNYX LLC 073H VAN METER IA
2020-05-05 515-642-7XXX 7000–7999Assigned TELNYX LLC 073H PERRY IA
2020-05-05 515-654-1XXX 1000–1999Assigned TELNYX LLC 073H WEBSTER CY IA
2020-05-05 515-755-0XXX 0000–0999Assigned TELNYX LLC 073H WESLEY IA
2020-05-05 515-762-0XXX 0000–0999Assigned TELNYX LLC 073H RUNNELLS IA
2020-05-04 515-293-3XXX 3000–3999Assigned TELNYX LLC 073H EAGLEGROVE IA
2020-05-04 515-316-0XXX 0000–0999Assigned TELNYX LLC 073H GILMORE CY IA
2020-05-04 515-489-1XXX 1000–1999Assigned TELNYX LLC 073H JEWELL IA
2020-05-04 515-498-1XXX 1000–1999Assigned TELNYX LLC 073H LIVERMORE IA
2020-05-04 515-517-3XXX 3000–3999Assigned TELNYX LLC 073H EARLHAM IA
2020-05-04 515-531-3XXX 3000–3999Assigned TELNYX LLC 073H GRANGER IA
2020-05-04 515-552-3XXX 3000–3999Assigned TELNYX LLC 073H INDIANOLA IA
2020-05-04 515-600-1XXX 1000–1999Assigned TELNYX LLC 073H LUVERNE IA
2020-05-04 515-750-3XXX 3000–3999Assigned TELNYX LLC 073H DAWSON IA
2020-05-04 515-834-8XXX 8000–8999Assigned TELNYX LLC 073H DE SOTO IA
2020-05-04 515-902-1XXX 1000–1999Assigned TELNYX LLC 073H HUMBOLDT IA
2020-05-04 515-946-0XXX 0000–0999Assigned TELNYX LLC 073H ELKHART IA
2020-05-01 515-349-0XXX 0000–0999Assigned TELNYX LLC 073H DALLAS CTR IA

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.