NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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 302
CORETEL DELAWARE, INC. - DE 228
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
2019-07-01 302-349-1XXX 1000–1999Assigned CORETEL DELAWARE, INC. - DE 1991 GREENWOOD DE
2019-07-01 302-349-8XXX 8000–8999Assigned CORETEL DELAWARE, INC. - DE 1991 GREENWOOD DE
2019-07-01 302-445-4XXX 4000–4999Assigned CORETEL DELAWARE, INC. - DE 1991 BRIDGEVL DE
2019-07-01 302-445-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 BRIDGEVL DE
2019-07-01 302-471-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 SMYRNA DE
2019-07-01 302-471-9XXX 9000–9999Assigned CORETEL DELAWARE, INC. - DE 1991 SMYRNA DE
2019-07-01 302-488-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 HARRINGTON DE
2019-07-01 302-488-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 HARRINGTON DE
2019-07-01 302-495-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 GREENWOOD DE
2019-07-01 302-498-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 WILMINGTON DE
2019-07-01 302-520-4XXX 4000–4999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-07-01 302-524-3XXX 3000–3999Assigned CORETEL DELAWARE, INC. - DE 1991 SELBYVILLE DE
2019-07-01 302-541-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 OCEAN VIEW DE
2019-07-01 302-581-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 OCEAN VIEW DE
2019-07-01 302-635-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 HOCKESSIN DE
2019-07-01 302-639-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 NEW CASTLE DE
2019-07-01 302-639-9XXX 9000–9999Assigned CORETEL DELAWARE, INC. - DE 1991 NEW CASTLE DE
2019-07-01 302-763-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 HOCKESSIN DE
2019-07-01 302-763-9XXX 9000–9999Assigned CORETEL DELAWARE, INC. - DE 1991 HOCKESSIN DE
2019-07-01 302-784-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 WILMINGTON DE
2019-07-01 302-784-3XXX 3000–3999Assigned CORETEL DELAWARE, INC. - DE 1991 WILMINGTON DE
2019-07-01 302-918-8XXX 8000–8999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-07-01 302-929-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 LAUREL DE
2019-06-10 302-746-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 HOLLY OAK DE
2019-05-24 302-487-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 DOVER DE
2019-05-24 302-487-4XXX 4000–4999Assigned CORETEL DELAWARE, INC. - DE 1991 DOVER DE
2019-05-24 302-487-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 DOVER DE
2019-05-24 302-487-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 DOVER DE
2019-04-25 302-238-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 GUMBORO DE
2019-04-25 302-238-8XXX 8000–8999Assigned CORETEL DELAWARE, INC. - DE 1991 GUMBORO DE
2019-04-25 302-459-4XXX 4000–4999Assigned CORETEL DELAWARE, INC. - DE 1991 MILFORD DE
2019-04-25 302-459-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 MILFORD DE
2019-04-25 302-459-9XXX 9000–9999Assigned CORETEL DELAWARE, INC. - DE 1991 MILFORD DE
2019-04-25 302-499-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-04-25 302-499-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-04-25 302-499-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-04-25 302-578-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 GUMBORO DE
2019-04-25 302-918-9XXX 9000–9999Assigned CORETEL DELAWARE, INC. - DE 1991 DELAWARECY DE
2019-04-18 302-485-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 WILMINGTON DE
2019-03-28 302-248-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 DELMAR DE
2019-03-28 302-284-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 FELTON DE
2019-03-28 302-386-4XXX 4000–4999Assigned CORETEL DELAWARE, INC. - DE 1991 REHOBOTH DE
2019-03-28 302-386-5XXX 5000–5999Assigned CORETEL DELAWARE, INC. - DE 1991 REHOBOTH DE
2019-03-28 302-386-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 REHOBOTH DE
2019-03-28 302-437-2XXX 2000–2999Assigned CORETEL DELAWARE, INC. - DE 1991 MIDDLETOWN DE
2019-03-28 302-437-3XXX 3000–3999Assigned CORETEL DELAWARE, INC. - DE 1991 MIDDLETOWN DE
2019-03-28 302-437-7XXX 7000–7999Assigned CORETEL DELAWARE, INC. - DE 1991 MIDDLETOWN DE
2019-03-28 302-437-8XXX 8000–8999Assigned CORETEL DELAWARE, INC. - DE 1991 MIDDLETOWN DE
2019-03-28 302-445-3XXX 3000–3999Assigned CORETEL DELAWARE, INC. - DE 1991 BRIDGEVL DE
2019-03-28 302-446-6XXX 6000–6999Assigned CORETEL DELAWARE, INC. - DE 1991 CAMDEN DE

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.