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
2005-10-13 304-208-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-10-11 304-909-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON3 WV
2005-10-04 304-270-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2005-09-21 304-952-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2005-09-16 304-906-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 MORGANTOWN WV
2005-09-13 304-238-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 WHELNGZON1 WV
2005-09-09 304-657-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 FAIRMONT WV
2005-08-31 304-237-0XXX 0000–0999Assigned METROPCS, INC. 5562 BECKLEY WV
2005-08-29 304-534-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRMONT WV
2005-08-22 304-212-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 MORGANTOWN WV
2005-08-18 304-867-2XXX 2000–2999Assigned FRONTIER WEST VIRGINIA INC. 9214 BERKELYSPG WV
2005-08-16 304-433-3XXX 3000–3999Assigned FRONTIER WEST VIRGINIA INC. 9214 MARTINSBG WV
2005-08-08 304-904-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WESTON WV
2005-08-03 304-517-0XXX 0000–0999Assigned METROPCS, INC. 5562 WESTON WV
2005-08-01 304-382-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2005-08-01 304-616-4XXX 4000–4999Assigned FRONTIER WEST VIRGINIA INC. 9214 MARTINSBG WV
2005-07-26 304-922-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2005-07-26 304-981-0XXX 0000–0999Assigned FIBERNET, LLC - WV 4095 MONTGOMERY WV
2005-07-26 304-981-9XXX 9000–9999Assigned FIBERNET, LLC - WV 4095 MONTGOMERY WV
2005-07-18 304-231-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 WV
2005-07-12 304-208-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-07-01 304-812-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PTPLEASANT WV
2005-06-30 304-812-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 PTPLEASANT WV
2005-06-30 304-812-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 PTPLEASANT WV
2005-06-23 304-854-5XXX 5000–5999Assigned LUMOS NETWORKS INC. - VA 7849 WHITESVL WV
2005-06-23 304-934-4XXX 4000–4999Assigned LUMOS NETWORKS INC. - VA 7849 GLENDANIEL WV
2005-06-16 304-914-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEIRTON WV
2005-06-14 304-923-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2005-06-13 304-521-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2005-06-06 304-268-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2005-06-06 304-268-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2005-06-06 304-268-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2005-06-06 304-268-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2005-05-13 304-709-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B CLARKSBURG WV
2005-05-13 304-919-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 WEIRTON WV
2005-05-13 304-982-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B CHRLSTNZN1 WV
2005-05-12 304-616-5XXX 5000–5999Assigned FRONTIER WEST VIRGINIA INC. 9214 MARTINSBG WV
2005-05-03 304-270-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2005-05-03 304-270-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2005-05-03 304-270-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2005-05-03 304-886-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2005-05-03 304-908-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 HNTNGTNZN4 WV
2005-04-20 304-462-3XXX 3000–3999Assigned FIBERNET, LLC - WV 4095 GLENVILLE WV
2005-04-20 304-489-0XXX 0000–0999Assigned FIBERNET, LLC - WV 4095 MINERLWLLS WV
2005-04-20 304-548-2XXX 2000–2999Assigned FIBERNET, LLC - WV 4095 CLENDENIN WV
2005-04-20 304-592-6XXX 6000–6999Assigned FIBERNET, LLC - WV 4095 SHINNSTON WV
2005-04-20 304-861-2XXX 2000–2999Assigned FIBERNET, LLC - WV 4095 PRKRSBGZN3 WV
2005-04-15 304-810-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON5 WV
2005-04-15 304-905-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON1 WV
2005-04-15 304-981-6XXX 6000–6999Assigned FIBERNET, LLC - WV 4095 MONTGOMERY 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.