NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 605
NEW CINGULAR WIRELESS PCS, LLC - IL 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 1
AHOI 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
2019-10-09 605-702-4XXX 4000–4999Assigned ONVOY, LLC - SD 162G STURGIS SD
2019-10-09 605-702-5XXX 5000–5999Assigned ONVOY, LLC - SD 162G STURGIS SD
2019-10-09 605-705-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G SIOUX FLS SD
2019-10-09 605-705-4XXX 4000–4999Assigned ONVOY, LLC - SD 162G SIOUX FLS SD
2019-10-09 605-705-6XXX 6000–6999Assigned ONVOY, LLC - SD 162G SIOUX FLS SD
2019-10-09 605-776-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G PIERRE SD
2019-10-09 605-776-4XXX 4000–4999Assigned ONVOY, LLC - SD 162G PIERRE SD
2019-10-09 605-836-6XXX 6000–6999Assigned ONVOY, LLC - SD 162G CANTON SD
2019-10-09 605-868-5XXX 5000–5999Assigned ONVOY, LLC - SD 162G WATERTOWN SD
2019-10-09 605-872-6XXX 6000–6999Assigned ONVOY, LLC - SD 162G RAPID CITY SD
2019-10-09 605-872-7XXX 7000–7999Assigned ONVOY, LLC - SD 162G RAPID CITY SD
2019-10-09 605-924-8XXX 8000–8999Assigned ONVOY, LLC - SD 162G MILBANK SD
2019-10-09 605-954-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G WATERTOWN SD
2019-10-09 605-979-7XXX 7000–7999Assigned ONVOY, LLC - SD 162G NOSIOUX CY SD
2019-09-23 605-309-9XXX 9000–9999Assigned TELNYX LLC 073H NOVALENTIN SD
2019-09-18 605-650-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J SIOUX FLS SD
2019-09-18 605-699-0XXX 0000–0999Assigned TELNYX LLC 073H BELLEFORCH SD
2019-09-11 605-403-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 6569 SIOUX FLS SD
2019-09-05 605-204-4XXX 4000–4999Assigned TELNYX LLC 073H MILLER SD
2019-09-05 605-205-4XXX 4000–4999Assigned TELNYX LLC 073H ELK POINT SD
2019-09-05 605-270-8XXX 8000–8999Assigned TELNYX LLC 073H MADISON SD
2019-09-05 605-307-4XXX 4000–4999Assigned TELNYX LLC 073H HILL CITY SD
2019-09-05 605-315-4XXX 4000–4999Assigned TELNYX LLC 073H ARLINGTON SD
2019-09-05 605-460-8XXX 8000–8999Assigned TELNYX LLC 073H REDFIELD SD
2019-09-05 605-499-4XXX 4000–4999Assigned TELNYX LLC 073H STURGIS SD
2019-09-05 605-599-4XXX 4000–4999Assigned TELNYX LLC 073H CAVOUR SD
2019-09-05 605-633-4XXX 4000–4999Assigned TELNYX LLC 073H FLANDREAU SD
2019-09-05 605-836-4XXX 4000–4999Assigned TELNYX LLC 073H CANTON SD
2019-09-05 605-860-4XXX 4000–4999Assigned TELNYX LLC 073H DE SMET SD
2019-09-05 605-930-4XXX 4000–4999Assigned TELNYX LLC 073H VOLGA SD
2019-08-30 605-570-3XXX 3000–3999Assigned TELNYX LLC 073H HURON SD
2019-08-30 605-815-0XXX 0000–0999Assigned TELNYX LLC 073H CHAMBERLAN SD
2019-08-27 605-954-9XXX 9000–9999Assigned INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. 907D WATERTOWN SD
2019-08-26 605-525-2XXX 2000–2999Assigned VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM 363J LK PRESTON SD
2019-08-26 605-860-2XXX 2000–2999Assigned VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM 363J DE SMET SD
2019-08-23 605-349-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G WESTJASPER SD
2019-08-21 605-309-2XXX 2000–2999Assigned ONVOY, LLC - SD 162G NOVALENTIN SD
2019-08-21 605-309-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G NOVALENTIN SD
2019-08-19 605-846-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 6569 ABERDEEN SD
2019-08-19 605-863-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 6569 RAPID CITY SD
2019-08-14 605-315-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G ARLINGTON SD
2019-08-14 605-453-5XXX 5000–5999Assigned ONVOY, LLC - SD 162G MILLER SD
2019-08-14 605-468-1XXX 1000–1999Assigned ONVOY, LLC - SD 162G REDFIELD SD
2019-08-14 605-524-2XXX 2000–2999Assigned ONVOY, LLC - SD 162G MCINTOSH SD
2019-08-14 605-546-8XXX 8000–8999Assigned ONVOY, LLC - SD 162G IROQUOIS SD
2019-08-14 605-570-5XXX 5000–5999Assigned ONVOY, LLC - SD 162G HURON SD
2019-08-14 605-599-3XXX 3000–3999Assigned ONVOY, LLC - SD 162G CAVOUR SD
2019-08-14 605-675-7XXX 7000–7999Assigned ONVOY, LLC - SD 162G VERMILLION SD
2019-08-14 605-702-7XXX 7000–7999Assigned ONVOY, LLC - SD 162G STURGIS SD
2019-08-14 605-776-2XXX 2000–2999Assigned ONVOY, LLC - SD 162G PIERRE SD

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.