NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 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 336
HD CARRIER LLC 3
ONVOY, LLC - NC 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
2005-11-15 336-429-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOUNT AIRY NC
2005-11-15 336-583-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 ROXBORO NC
2005-11-10 336-269-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2005-11-10 336-402-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2005-11-10 336-402-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2005-10-19 336-207-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2005-10-19 336-870-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2005-09-16 336-232-8XXX 8000–8999Assigned METROPCS, INC. 5562 GREENSBORO NC
2005-09-16 336-245-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WINSTN SAL NC
2005-09-12 336-207-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 GREENSBORO NC
2005-09-12 336-266-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2005-09-12 336-603-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J GIBSONVL NC
2005-09-12 336-906-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 HIGH POINT NC
2005-09-12 336-970-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-08-29 336-251-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-29 336-251-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-29 336-251-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-29 336-251-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-29 336-251-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-29 336-251-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINSTN SAL NC
2005-08-25 336-307-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-08-25 336-307-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-08-25 336-394-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2005-08-25 336-394-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 REIDSVILLE NC
2005-08-25 336-428-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ELKIN NC
2005-08-25 336-588-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2005-08-24 336-231-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7973 WINSTN SAL NC
2005-08-19 336-464-5XXX 5000–5999Assigned SUNCOM DBA T-MOBILE USA 8645 WINSTN SAL NC
2005-08-19 336-638-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2005-08-16 336-301-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 ASHEBORO NC
2005-08-16 336-772-0XXX 0000–0999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2005-08-16 336-772-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 GREENSBORO NC
2005-08-12 336-306-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC
2005-08-08 336-638-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 GREENSBORO NC
2005-07-27 336-201-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 WINSTN SAL NC
2005-07-21 336-543-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-543-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-543-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-543-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-543-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-543-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENSBORO NC
2005-07-21 336-848-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-07-21 336-991-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-07-21 336-991-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-07-21 336-991-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 HIGH POINT NC
2005-07-15 336-653-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ASHEBORO NC
2005-07-15 336-693-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2005-07-15 336-693-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BURLINGTON NC
2005-07-14 336-266-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 BURLINGTON NC
2005-07-14 336-306-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 WINSTN SAL NC

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.