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
2010-07-09 918-699-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-07-06 918-609-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J OWASSO OK
2010-07-06 918-893-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2010-07-02 918-576-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-06-28 918-943-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BIXBY OK
2010-06-24 918-729-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DRUMRIGHT OK
2010-06-17 918-815-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BARTLESVL OK
2010-06-15 918-281-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-06-15 918-779-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-05-25 918-280-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2010-05-25 918-280-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2010-05-25 918-550-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2010-05-25 918-550-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2010-05-21 918-550-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2010-05-12 918-215-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SAND SPG OK
2010-05-12 918-216-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SAPULPA OK
2010-05-10 918-418-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 VINITA OK
2010-05-10 918-550-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 TULSA OK
2010-05-10 918-550-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 TULSA OK
2010-05-06 918-729-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DRUMRIGHT OK
2010-04-07 918-550-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-04-07 918-550-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-04-07 918-550-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-04-07 918-550-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-04-05 918-856-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 TULSA OK
2010-04-01 918-216-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SAPULPA OK
2010-03-31 918-325-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 MIAMI OK
2010-03-22 918-221-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F TULSA OK
2010-03-04 918-729-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DRUMRIGHT OK
2010-03-01 918-913-9XXX 9000–9999Assigned CSC VOICE, LLC 612K MUSKOGEE OK
2010-02-22 918-236-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF OKLAHOMA, LLC - OK 7632 TULSA OK
2010-02-17 918-893-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROKENARRW OK
2010-02-05 918-501-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-05 918-501-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TULSA OK
2010-02-03 918-516-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OK 119F OWASSO OK
2010-01-21 918-218-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OK 5257 SPERRY OK
2010-01-19 918-886-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA OK - LLC 530C BARTLESVL OK
2010-01-13 918-285-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 CUSHING OK
2010-01-12 918-271-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-01-12 918-271-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-01-12 918-388-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 TULSA OK
2010-01-12 918-493-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK 5813 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.