NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 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 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
2006-04-07 918-559-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NOWATA OK
2006-04-04 918-938-0XXX 0000–0999Assigned BTC BROADBAND, INC. 669B TULSA OK
2006-04-03 918-504-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2006-04-03 918-504-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2006-04-03 918-504-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2006-03-23 918-376-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 OWASSO OK
2006-03-16 918-286-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2006-03-16 918-286-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2006-03-10 918-506-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TAHLEQUAH OK
2006-02-27 918-843-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHECOTAH OK
2006-02-23 918-704-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-23 918-845-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-17 918-551-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2006-02-17 918-551-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2006-02-16 918-839-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POTEAU OK
2006-02-14 918-553-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J COLLINSVL OK
2006-02-13 918-457-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2006-02-13 918-490-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUFAULA OK
2006-02-09 918-720-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-09 918-720-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-02-08 918-864-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2006-02-03 918-281-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J TULSA OK
2006-01-25 918-571-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2006-01-24 918-351-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2006-01-19 918-304-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OKMULGEE OK
2006-01-16 918-320-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MIAMI OK
2006-01-16 918-766-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2006-01-13 918-208-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SALLISAW OK
2006-01-13 918-237-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-302-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 MCALESTER OK
2006-01-13 918-384-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-403-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-407-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-408-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-430-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-439-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-513-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2006-01-13 918-708-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TAHLEQUAH OK
2006-01-11 918-977-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK 7258 BARTLESVL OK
2006-01-10 918-764-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-12-28 918-534-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 DEWEY OK
2005-12-13 918-541-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIAMI OK
2005-12-09 918-292-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-12-09 918-518-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JENKS OK

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.