NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

4,019 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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 146
NEW CINGULAR WIRELESS PCS, LLC 135
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
2026-02-26 948-256-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E NRFOLKZON1 VA
2026-02-26 972-328-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DALLAS TX
2026-02-26 972-328-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DALLAS TX
2026-02-26 972-328-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DALLAS TX
2026-02-26 972-328-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DALLAS TX
2026-02-26 972-328-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DALLAS TX
2026-02-26 973-613-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C HAWTHORNE NJ
2026-02-26 975-206-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-206-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-26 975-207-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANSASCITY MO
2026-02-25 209-253-4XXX 4000–4999Assigned HD CARRIER LLC 321J RIPON CA
2026-02-25 209-994-7XXX 7000–7999Assigned HD CARRIER LLC 321J RIPON CA
2026-02-25 225-536-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BATONROUGE LA
2026-02-25 225-536-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BATONROUGE LA
2026-02-25 225-580-0XXX 0000–0999Assigned WAVENATION, LLC 700J BATONROUGE LA
2026-02-25 227-298-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSNGTNZN10 MD
2026-02-25 229-602-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 MEIGS GA
2026-02-25 231-428-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKEGON MI
2026-02-25 254-561-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELTON TX
2026-02-25 272-250-5XXX 5000–5999Assigned PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E SCRANTON PA
2026-02-25 272-475-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANSFORD PA
2026-02-25 276-446-4XXX 4000–4999Assigned CITIZENS TELEPHONE COOPERATIVE - VA 544A SYLVATUS VA
2026-02-25 307-490-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K UPTON WY
2026-02-25 337-651-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2026-02-25 337-903-0XXX 0000–0999Assigned WAVENATION, LLC 700J LAFAYETTE LA
2026-02-25 346-737-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2026-02-25 346-737-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2026-02-25 346-909-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAMMEL TX
2026-02-25 350-213-2XXX 2000–2999Assigned HD CARRIER LLC 321J LINDEN CA
2026-02-25 350-213-3XXX 3000–3999Assigned HD CARRIER LLC 321J LINDEN CA
2026-02-25 385-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-581-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-581-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-584-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-593-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-593-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2026-02-25 385-619-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OGDEN UT
2026-02-25 409-305-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BEAUMONT TX
2026-02-25 413-524-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.