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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-07-15 843-948-4XXX 4000–4999Assigned TWILIO INTERNATIONAL, INC. 506J LATTA SC
2022-06-23 843-253-9XXX 9000–9999Assigned COMMIO, LLC 939H CHERAW SC
2022-06-23 843-544-1XXX 1000–1999Assigned COMMIO, LLC 939H BENNETTSVL SC
2022-06-21 843-516-8XXX 8000–8999Assigned COMMIO, LLC 939H WMYRTLEBCH SC
2022-06-21 843-938-9XXX 9000–9999Assigned COMMIO, LLC 939H HARTSVILLE SC
2022-05-27 843-939-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2022-05-27 843-939-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SCRANTON SC
2022-04-20 843-220-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 EASTCONWAY SC
2022-04-20 843-220-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 EASTCONWAY SC
2022-04-19 843-415-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-04-19 843-533-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-04-19 843-533-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-04-19 843-533-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-04-14 843-750-9XXX 9000–9999Assigned METROPCS, INC. 5562 COLLINSCK SC
2022-04-08 843-589-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K YEMASSEE SC
2022-03-30 843-289-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 MARION SC
2022-03-30 843-765-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 MARION SC
2022-03-30 843-765-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 MARION SC
2022-03-30 843-955-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J CHARLESTON SC
2022-03-29 843-380-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F JOHNSONVL SC
2022-03-24 843-783-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HARDEEVL SC
2022-02-28 843-739-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 NWALTERBOR SC
2022-02-28 843-739-6XXX 6000–6999Assigned SUNCOM DBA T-MOBILE USA 8645 NWALTERBOR SC
2022-02-28 843-739-7XXX 7000–7999Assigned SUNCOM DBA T-MOBILE USA 8645 NWALTERBOR SC
2022-02-28 843-739-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 NWALTERBOR SC
2022-02-22 843-380-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F JOHNSONVL SC
2022-02-17 843-877-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 LORIS SC
2022-02-04 843-932-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GEORGETOWN SC
2022-02-01 843-702-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FLORENCE SC
2022-02-01 843-702-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FLORENCE SC
2022-02-01 843-713-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F FLORENCE SC
2022-02-01 843-739-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J NWALTERBOR SC
2022-01-31 843-783-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J HARDEEVL SC
2022-01-31 843-943-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J LODGE SC
2022-01-28 843-380-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F JOHNSONVL SC
2022-01-28 843-922-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J HARLEYVL SC
2022-01-28 843-960-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F MCCOLL SC
2022-01-28 843-967-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J SWALTERBOR SC
2022-01-26 843-969-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F SULLIVNSIS SC
2022-01-10 843-684-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-01-10 843-684-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-01-10 843-895-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HILTONHEAD SC
2022-01-05 843-534-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2022-01-05 843-534-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2022-01-05 843-853-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 CHARLESTON SC
2021-12-29 843-733-6XXX 6000–6999Assigned ONVOY, LLC - SC 548E CONWAY SC
2021-12-29 843-733-8XXX 8000–8999Assigned ONVOY, LLC - SC 548E CONWAY SC
2021-12-20 843-738-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CLIO SC
2021-12-07 843-698-7XXX 7000–7999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H EASTCONWAY SC
2021-12-07 843-698-8XXX 8000–8999Assigned SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC 527H EASTCONWAY 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.