NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 712
NEW CINGULAR WIRELESS PCS, LLC - IL 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
2019-06-26 712-938-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MERRILL IA
2019-06-25 712-638-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STORM LAKE IA
2019-06-17 712-651-0XXX 0000–0999Assigned AUREON COMMUNICATIONS, LLC 444G BAYARD IA
2019-06-14 712-545-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 CRESCENT IA
2019-06-14 712-642-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 MISSOURVLY IA
2019-06-14 712-847-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 CARTERLAKE IA
2019-06-06 712-538-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 POCAHONTAS IA
2019-06-06 712-765-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 ESTHERVL IA
2019-05-29 712-524-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F COUNCILBLF IA
2019-05-28 712-208-1XXX 1000–1999Assigned UNITED STATES CELLULAR - IA 6266 MAPLETON IA
2019-05-28 712-219-1XXX 1000–1999Assigned UNITED STATES CELLULAR - IA 6266 ONAWA IA
2019-05-28 712-823-4XXX 4000–4999Assigned UNITED STATES CELLULAR - IA 6266 SERGENTBLF IA
2019-05-28 712-873-8XXX 8000–8999Assigned UNITED STATES CELLULAR - IA 6266 MOVILLE IA
2019-05-24 712-535-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IA 6266 SIOUX CITY IA
2019-05-23 712-517-0XXX 0000–0999Assigned TELNYX LLC 073H RED OAK IA
2019-05-23 712-772-0XXX 0000–0999Assigned TELNYX LLC 073H MINEOLA IA
2019-05-23 712-787-0XXX 0000–0999Assigned TELNYX LLC 073H NEOLA IA
2019-04-30 712-517-1XXX 1000–1999Assigned AIRUS, INC - IA 423H RED OAK IA
2019-04-30 712-772-1XXX 1000–1999Assigned AIRUS, INC - IA 423H MINEOLA IA
2019-04-30 712-787-1XXX 1000–1999Assigned AIRUS, INC - IA 423H NEOLA IA
2019-04-26 712-201-6XXX 6000–6999Assigned AIRUS, INC - IA 423H UNDERWOOD IA
2019-04-26 712-218-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BATTLE CRK IA
2019-04-26 712-302-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENWOOD IA
2019-04-26 712-312-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PIERSON IA
2019-04-26 712-315-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STRUBLE IA
2019-04-26 712-316-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WASHTA IA
2019-04-26 712-545-2XXX 2000–2999Assigned AIRUS, INC - IA 423H CRESCENT IA
2019-04-26 712-600-8XXX 8000–8999Assigned AIRUS, INC - IA 423H MISSOURVLY IA
2019-04-25 712-430-4XXX 4000–4999Assigned AIRUS, INC - IA 423H MALVERN IA
2019-04-25 712-525-2XXX 2000–2999Assigned AIRUS, INC - IA 423H SILVERCITY IA
2019-04-23 712-847-5XXX 5000–5999Assigned AIRUS, INC - IA 423H CARTERLAKE IA
2019-04-15 712-717-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F SIOUX CITY IA
2019-04-10 712-481-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E SHENANDOAH IA
2019-04-09 712-796-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J COUNCILBLF IA
2019-04-02 712-973-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E ENBRASKACY IA
2019-03-19 712-509-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2019-03-15 712-973-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F ENBRASKACY IA
2019-03-01 712-539-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 LE MARS IA
2019-02-07 712-521-3XXX 3000–3999Assigned BTC, INC. - IA 156C GLENWOOD IA
2019-01-15 712-304-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 EXIRA IA
2019-01-15 712-796-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2019-01-09 712-344-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SHELDON IA
2018-12-27 712-321-3XXX 3000–3999Assigned C-M-L TELEPHONE COOPERATIVE ASSOCIATION OF MERIDEN 366J CHEROKEE IA
2018-12-06 712-208-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MAPLETON IA
2018-12-06 712-208-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F MAPLETON IA
2018-12-06 712-214-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F ASHTON IA
2018-12-06 712-214-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F ASHTON IA
2018-12-06 712-218-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F BATTLE CRK IA
2018-12-06 712-218-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F BATTLE CRK IA
2018-12-06 712-219-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F ONAWA 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.