NumberResearch Membership · Data 09/28/2026

Recent thousands-block assignments

3,988 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/28/2026

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
NEW CINGULAR WIRELESS PCS, LLC - DC 300
NEW CINGULAR WIRELESS PCS, LLC - IL 255
EXIANT COMMUNICATIONS LLC 245
ONVOY, LLC - CA 144
INTRADO COMMUNICATIONS, LLC 134
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
Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2026-01-07 929-839-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2026-01-07 929-839-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2026-01-07 929-839-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2026-01-07 929-839-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2026-01-07 929-840-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-840-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN08 NY
2026-01-07 929-843-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 929-843-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 929-843-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 929-843-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 929-843-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 929-843-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN05 NY
2026-01-07 936-381-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISONVL TX
2026-01-07 945-424-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2026-01-07 945-424-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2026-01-07 945-424-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2026-01-07 945-424-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2026-01-07 970-418-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DILLON CO
2026-01-07 979-351-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEALY TX
2026-01-07 989-296-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PRESCOTT MI
2026-01-07 989-535-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ITHACA MI
2026-01-07 989-590-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ALPENA MI
2026-01-06 207-226-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - ME 382D ROCKLAND ME
2026-01-06 252-763-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SPRINGHOPE NC
2026-01-06 252-763-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SPRINGHOPE NC
2026-01-06 252-763-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SPRINGHOPE NC
2026-01-06 307-482-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WHEATLAND WY
2026-01-06 307-485-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CASPER WY
2026-01-06 307-485-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CASPER WY
2026-01-06 319-407-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 WAVERLY IA
2026-01-06 319-407-7XXX 7000–7999Assigned UNITED STATES CELLULAR - IA 6266 WAVERLY IA
2026-01-06 350-222-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HUGHSON CA
2026-01-06 385-621-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MURRAY UT
2026-01-06 417-464-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BRANSON MO
2026-01-06 475-361-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 CHESHIRE CT
2026-01-06 475-391-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 BRIDGEPORT CT
2026-01-06 516-529-3XXX 3000–3999Assigned YORKSTREAM COMMUNICATIONS LLC 977K NASSAUZN05 NY
2026-01-06 516-529-4XXX 4000–4999Assigned YORKSTREAM COMMUNICATIONS LLC 977K NASSAUZN05 NY
2026-01-06 516-529-7XXX 7000–7999Assigned YORKSTREAM COMMUNICATIONS LLC 977K NASSAUZN05 NY
2026-01-06 516-529-9XXX 9000–9999Assigned YORKSTREAM COMMUNICATIONS LLC 977K NASSAUZN05 NY
2026-01-06 530-998-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUBN MAIN CA
2026-01-06 530-998-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUBN MAIN CA
2026-01-06 530-998-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUBN MAIN CA
2026-01-06 539-372-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CLAREMORE OK
2026-01-06 541-707-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 REEDSPORT OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.