NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 304
T-MOBILE USA, INC. 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 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
2005-04-06 304-206-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-04-06 304-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-04-06 304-224-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WEIRTON WV
2005-04-06 304-459-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CHESTER WV
2005-04-06 304-527-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FOLLANSBEE WV
2005-04-06 304-564-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NEWCUMBRLD WV
2005-04-06 304-737-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WELLSBURG WV
2005-03-30 304-521-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2005-03-25 304-513-0XXX 0000–0999Assigned FIBERNET, LLC - WV 4095 CHRLSTNZN4 WV
2005-03-18 304-373-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 RIPLEY WV
2005-03-18 304-923-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2005-03-17 304-812-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PTPLEASANT WV
2005-03-07 304-521-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-03-04 304-239-8XXX 8000–8999Assigned LUMOS NETWORKS INC. - VA 7849 LOGAN WV
2005-03-04 304-645-8XXX 8000–8999Assigned LUMOS NETWORKS INC. - VA 7849 LEWISBURG WV
2005-02-25 304-307-6XXX 6000–6999Assigned FIBERNET, LLC - WV 4095 MADISON WV
2005-02-15 304-513-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CHRLSTNZN4 WV
2005-02-14 304-596-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 MARTINSBG WV
2005-02-11 304-574-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 FAYETTEVL WV
2005-02-09 304-904-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WESTON WV
2005-02-09 304-906-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 MORGANTOWN WV
2005-02-09 304-952-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2005-02-08 304-208-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-02-08 304-834-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2005-02-07 304-231-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 WV
2005-02-07 304-382-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-02-07 304-382-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-02-07 304-382-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-02-07 304-923-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2005-02-07 304-952-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2005-02-02 304-250-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BECKLEY WV
2005-01-31 304-521-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 HNTNGTNZN1 WV
2005-01-28 304-250-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BECKLEY WV
2005-01-28 304-933-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BRIDGEPORT WV
2005-01-24 304-790-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WV 6284 KEYSER WV
2005-01-24 304-790-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WV 6284 KEYSER WV
2005-01-24 304-790-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WV 6284 KEYSER WV
2005-01-24 304-923-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2005-01-20 304-703-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOOREFIELD WV
2005-01-12 304-239-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 LOGAN WV
2005-01-12 304-521-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 HNTNGTNZN1 WV
2005-01-12 304-699-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 PRKRSBGZN1 WV
2005-01-11 304-593-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PTPLEASANT WV
2005-01-10 304-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-01-10 304-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-01-10 304-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-01-10 304-208-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-01-10 304-208-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-01-10 304-231-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 WV
2005-01-10 304-723-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEIRTON WV

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.