NumberResearchRecent thousands-block assignments
4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 315
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-09-13 | 315-251-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2006-09-13 | 315-283-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AUBURN | NY |
| 2006-09-13 | 315-283-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AUBURN | NY |
| 2006-09-13 | 315-489-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-09-13 | 315-523-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-09-13 | 315-586-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-09-13 | 315-775-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-09-11 | 315-299-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2006-09-06 | 315-261-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | POTSDAM | NY |
| 2006-09-06 | 315-283-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | AUBURN | NY |
| 2006-09-06 | 315-405-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WATERTOWN | NY |
| 2006-09-06 | 315-456-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY |
| 2006-09-06 | 315-532-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | OSWEGO | NY |
| 2006-09-06 | 315-534-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | UTICA | NY |
| 2006-08-17 | 315-708-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2006-08-17 | 315-708-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2006-08-17 | 315-708-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2006-08-17 | 315-708-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SYRACUSE | NY |
| 2006-08-16 | 315-318-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHELPS | NY |
| 2006-08-16 | 315-501-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CAPEVINCNT | NY |
| 2006-08-16 | 315-513-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LYONSFALLS | NY |
| 2006-08-16 | 315-777-9XXX | 9000–9999 | Assigned | WESTELCOM NETWORK, INC. - NY | 1227 | WATERTOWN | NY |
| 2006-08-16 | 315-906-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLIFTONSPG | NY |
| 2006-08-16 | 315-918-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DEXTER | NY |
| 2006-08-16 | 315-953-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | VERNON | NY |
| 2006-08-15 | 315-261-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | POTSDAM | NY |
| 2006-08-15 | 315-842-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MASSENA | NY |
| 2006-08-07 | 315-834-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WEEDSPORT | NY |
| 2006-08-04 | 315-228-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | NY |
| 2006-08-04 | 315-282-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | AUBURN | NY |
| 2006-08-04 | 315-381-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLINTON | NY |
| 2006-08-04 | 315-405-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WATERTOWN | NY |
| 2006-08-04 | 315-554-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SKANEATLES | NY |
| 2006-08-04 | 315-601-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | UTICA | NY |
| 2006-08-04 | 315-601-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | UTICA | NY |
| 2006-08-04 | 315-694-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PENN YAN | NY |
| 2006-08-04 | 315-790-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2006-08-04 | 315-877-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY |
| 2006-08-04 | 315-877-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY |
| 2006-08-04 | 315-877-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY |
| 2006-08-04 | 315-877-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYRACUSE | NY |
| 2006-08-04 | 315-902-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLYDE | NY |
| 2006-08-03 | 315-219-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | HERKIMER | NY |
| 2006-08-03 | 315-532-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | OSWEGO | NY |
| 2006-07-28 | 315-405-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-07-28 | 315-405-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2006-07-28 | 315-580-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UTICA | NY |
| 2006-07-28 | 315-731-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UTICA | NY |
| 2006-07-28 | 315-734-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | UTICA | NY |
| 2006-07-11 | 315-715-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LIVERPOOL | NY |
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.