NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 843
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 449
ONVOY, LLC - SC 446
NEW CINGULAR WIRELESS PCS, LLC - GA 361
BANDWIDTH.COM CLEC, LLC - SC 309
SUNCOM DBA T-MOBILE USA 268
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
2008-07-03 843-798-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2008-06-19 843-718-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2008-06-17 843-801-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLESTON SC
2008-06-17 843-801-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLESTON SC
2008-06-17 843-801-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLESTON SC
2008-06-17 843-801-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLESTON SC
2008-06-17 843-801-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLESTON SC
2008-06-16 843-614-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J CHARLESTON SC
2008-06-16 843-614-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CHARLESTON SC
2008-06-16 843-654-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MTPLEASANT SC
2008-06-13 843-608-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F CHARLESTON SC
2008-06-12 843-635-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NWALTERBOR SC
2008-06-05 843-614-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2008-05-28 843-771-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMMERVL SC
2008-05-28 843-771-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SUMMERVL SC
2008-05-27 843-771-5XXX 5000–5999Assigned ONVOY, LLC - SC 548E SUMMERVL SC
2008-05-27 843-771-7XXX 7000–7999Assigned ONVOY, LLC - SC 548E SUMMERVL SC
2008-05-16 843-302-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 CHARLESTON SC
2008-05-12 843-798-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2008-05-12 843-798-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2008-05-12 843-798-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WMYRTLEBCH SC
2008-05-08 843-314-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 PAWLEYS IS SC
2008-05-07 843-580-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 FOLLYBEACH SC
2008-05-06 843-291-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2008-05-06 843-499-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2008-05-06 843-499-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 MONCKS COR SC
2008-05-06 843-614-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 288B CHARLESTON SC
2008-05-02 843-619-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C CHARLESTON SC
2008-05-02 843-758-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C FLORENCE SC
2008-03-27 843-635-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NWALTERBOR SC
2008-03-27 843-635-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 NWALTERBOR SC
2008-03-26 843-917-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 HARTSVILLE SC
2008-03-25 843-206-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 FLORENCE SC
2008-03-25 843-323-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 CHARLESTON SC
2008-03-25 843-473-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 BEAUFORT SC
2008-03-07 843-213-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MYRTLE BCH SC
2008-02-22 843-284-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MTPLEASANT SC
2008-02-08 843-269-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FLORENCE SC
2008-02-08 843-269-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FLORENCE SC
2008-02-08 843-637-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2008-02-08 843-637-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CHARLESTON SC
2008-02-07 843-939-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2008-02-07 843-939-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2008-02-06 843-610-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 FLORENCE SC
2008-02-01 843-889-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 HOLLYWOOD SC
2008-01-31 843-461-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GEORGETOWN SC
2008-01-31 843-461-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GEORGETOWN SC
2008-01-28 843-372-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KINGSTREE SC
2008-01-22 843-325-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 GEORGETOWN SC
2008-01-21 843-564-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - SC 5258 HOLLYWOOD SC

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.