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
2005-12-09 918-619-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-12-09 918-619-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-12-09 918-619-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-12-09 918-619-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-12-08 918-403-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2005-11-14 918-292-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-11-14 918-321-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J KIEFER OK
2005-10-19 918-720-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-10-18 918-376-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OWASSO OK
2005-10-03 918-399-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CUSHING OK
2005-09-27 918-457-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAHLEQUAH OK
2005-09-21 918-286-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2005-09-21 918-286-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2005-09-19 918-237-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 TULSA OK
2005-09-19 918-237-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 TULSA OK
2005-09-19 918-833-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 TULSA OK
2005-09-19 918-833-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OK 6272 TULSA OK
2005-09-19 918-833-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 TULSA OK
2005-09-02 918-497-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-09-02 918-497-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-09-02 918-497-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-09-02 918-497-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-09-01 918-619-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-09-01 918-619-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-08-31 918-864-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRYOR OK
2005-08-31 918-917-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 WILBURTON OK
2005-08-26 918-347-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SAPULPA OK
2005-07-27 918-937-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 KETCHUM OK
2005-07-13 918-237-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-237-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-237-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-237-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-237-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-237-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TULSA OK
2005-07-13 918-571-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SALLISAW OK
2005-07-13 918-766-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLESVL OK
2005-07-13 918-770-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-07-13 918-770-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-07-13 918-948-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-07-13 918-948-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-07-13 918-948-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-07-13 918-948-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2005-06-29 918-398-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-06-29 918-398-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2005-06-23 918-398-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J TULSA OK
2005-06-13 918-351-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2005-06-13 918-351-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2005-06-13 918-351-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUSKOGEE OK
2005-06-06 918-615-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW OK
2005-06-06 918-615-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 BROKENARRW 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.