NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 906
OPENTACT INC. 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
2010-11-17 906-398-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2010-09-27 906-295-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K POWERS MI
2010-09-27 906-498-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HERMANSVL MI
2010-09-15 906-231-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUGHTON MI
2010-08-12 906-233-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2010-08-09 906-233-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ESCANABA MI
2010-08-09 906-523-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOUGHTON MI
2010-07-29 906-934-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CALUMET MI
2010-07-23 906-285-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 IRONWOOD MI
2010-07-19 906-398-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2010-07-12 906-372-3XXX 3000–3999Assigned BARAGA TELEPHONE COMPANY 4253 GWINN MI
2010-06-03 906-339-8XXX 8000–8999Assigned BARAGA TELEPHONE COMPANY 4253 CHAMPION MI
2010-05-17 906-553-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2010-04-13 906-203-3XXX 3000–3999Assigned BARAGA TELEPHONE COMPANY 4253 SALTSTMARI MI
2010-04-13 906-233-5XXX 5000–5999Assigned BARAGA TELEPHONE COMPANY 4253 ESCANABA MI
2010-04-13 906-285-5XXX 5000–5999Assigned BARAGA TELEPHONE COMPANY 4253 IRONWOOD MI
2010-04-13 906-290-5XXX 5000–5999Assigned BARAGA TELEPHONE COMPANY 4253 MENOMINEE MI
2010-04-13 906-298-3XXX 3000–3999Assigned BARAGA TELEPHONE COMPANY 4253 ST IGNACE MI
2010-02-16 906-203-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALTSTMARI MI
2010-01-29 906-792-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MENOMINEE MI
2009-11-12 906-204-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ISHPEMING MI
2009-11-12 906-374-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STEPHENSON MI
2009-11-11 906-430-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST IGNACE MI
2009-10-30 906-365-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BERGLAND MI
2009-10-26 906-553-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2009-08-31 906-231-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUGHTON MI
2009-08-07 906-203-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALTSTMARI MI
2009-07-20 906-242-0XXX 0000–0999Assigned PENINSULA FIBER NETWORK, LLC - MI 116F NEGAUNEE MI
2009-05-06 906-285-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRONWOOD MI
2009-04-28 906-259-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SALTSTMARI MI
2009-04-21 906-203-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALTSTMARI MI
2009-02-19 906-204-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ISHPEMING MI
2009-01-20 906-239-1XXX 1000–1999Assigned BARAGA TELEPHONE COMPANY 4253 IRON MT MI
2008-10-03 906-440-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALTSTMARI MI
2008-10-03 906-792-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MENOMINEE MI
2008-09-19 906-231-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUGHTON MI
2008-09-03 906-430-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST IGNACE MI
2008-08-05 906-273-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARQUETTE MI
2008-07-21 906-440-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALTSTMARI MI
2008-07-09 906-204-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ISHPEMING MI
2008-06-24 906-204-3XXX 3000–3999Assigned BARAGA TELEPHONE COMPANY 4253 ISHPEMING MI
2008-06-24 906-232-1XXX 1000–1999Assigned BARAGA TELEPHONE COMPANY 4253 MARQUETTE MI
2008-05-21 906-397-8XXX 8000–8999Assigned METRO SOUTHWEST PCS, LLP 9759 CARNEY MI
2008-04-11 906-285-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRONWOOD MI
2008-03-11 906-553-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ESCANABA MI
2007-12-04 906-424-0XXX 0000–0999Assigned METRO SOUTHWEST PCS, LLP 9759 MENOMINEE MI
2007-12-04 906-424-1XXX 1000–1999Assigned METRO SOUTHWEST PCS, LLP 9759 MENOMINEE MI
2007-10-15 906-828-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 IRON MT MI
2007-09-14 906-364-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRONWOOD MI
2007-08-31 906-356-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROCK MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.