NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 918
NEW CINGULAR WIRELESS PCS, LLC - IL 5
BOOST SUBSCRIBERCO L.L.C. 1
BANDWIDTH.COM CLEC, LLC - OK 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
2015-10-30 918-310-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H MUSKOGEE OK
2015-10-22 918-436-4XXX 4000–4999Assigned METROPCS, INC. 5562 POCOLA OK
2015-10-21 918-612-2XXX 2000–2999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H SPIRO OK
2015-10-21 918-875-4XXX 4000–4999Assigned METROPCS, INC. 5562 MOFFETT OK
2015-10-20 918-303-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F PAWNEE OK
2015-10-20 918-974-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C POTEAU OK
2015-10-19 918-941-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 KELLYVILLE OK
2015-10-15 918-543-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 INOLA OK
2015-10-14 918-559-4XXX 4000–4999Assigned UNITED STATES CELLULAR - OK 6272 NOWATA OK
2015-10-12 918-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STROUD OK
2015-10-12 918-843-3XXX 3000–3999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H CHECOTAH OK
2015-10-12 918-944-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINITA OK
2015-10-08 918-205-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 COLLINSVL OK
2015-10-07 918-891-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2015-10-07 918-891-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2015-10-07 918-891-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2015-10-07 918-891-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2015-10-06 918-318-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCALESTER OK
2015-10-06 918-758-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKMULGEE OK
2015-10-06 918-777-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OKMULGEE OK
2015-10-05 918-248-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H SAPULPA OK
2015-10-05 918-940-9XXX 9000–9999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H BROKENARRW OK
2015-10-01 918-279-2XXX 2000–2999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H COWETA OK
2015-10-01 918-600-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-10-01 918-600-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-10-01 918-600-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-10-01 918-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-10-01 918-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-09-23 918-471-1XXX 1000–1999Assigned PEERLESS NETWORK OF OKLAHOMA, LLC - OK 384H WILBURTON OK
2015-09-18 918-900-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-09-18 918-900-9XXX 9000–9999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-09-16 918-703-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2015-08-26 918-600-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2015-08-18 918-602-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C COLLINSVL OK
2015-08-13 918-600-0XXX 0000–0999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-08-13 918-600-1XXX 1000–1999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-08-13 918-600-2XXX 2000–2999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-08-13 918-600-6XXX 6000–6999Assigned ONVOY, LLC - OK 409F TULSA OK
2015-08-13 918-940-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2015-08-11 918-940-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2015-08-10 918-721-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTEAU OK
2015-07-29 918-238-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F MIAMI OK
2015-07-29 918-471-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F WILBURTON OK
2015-07-27 918-404-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-07-27 918-438-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-07-27 918-499-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-07-27 918-712-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-07-27 918-730-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2015-07-27 918-991-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2015-07-23 918-523-0XXX 0000–0999Assigned METROPCS, INC. 5562 TULSA OK

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.