NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, all time — NPA 315
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-06-06 | 315-681-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2011-03-02 | 315-755-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2011-02-28 | 315-327-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2010-11-19 | 315-221-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2010-03-30 | 315-804-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2009-08-10 | 315-519-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | CARTHAGE | NY |
| 2009-07-09 | 315-308-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-07-09 | 315-308-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-07-09 | 315-308-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-07-09 | 315-413-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-07-09 | 315-413-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-02-27 | 315-688-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COPENHAGEN | NY |
| 2009-02-02 | 315-308-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-02-02 | 315-308-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-02-02 | 315-308-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-02-02 | 315-308-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-02-02 | 315-939-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2009-02-02 | 315-939-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2009-02-02 | 315-939-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2009-02-02 | 315-939-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2009-01-30 | 315-294-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2009-01-30 | 315-604-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2009-01-30 | 315-704-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2009-01-08 | 315-289-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-01-08 | 315-378-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-01-08 | 315-403-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-01-08 | 315-403-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-01-08 | 315-431-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2009-01-08 | 315-498-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-307-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-307-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-307-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-307-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-403-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-08-27 | 315-403-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
| 2008-05-28 | 315-351-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2008-05-28 | 315-370-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2008-05-28 | 315-370-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2008-05-28 | 315-370-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | AUBURN | NY |
| 2008-05-28 | 315-507-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2008-05-28 | 315-507-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | UTICA | NY |
| 2008-05-28 | 315-519-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | CARTHAGE | NY |
| 2008-05-28 | 315-519-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | CARTHAGE | NY |
| 2008-05-28 | 315-563-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | POPLAR RDG | NY |
| 2008-05-28 | 315-563-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | POPLAR RDG | NY |
| 2008-05-28 | 315-608-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2008-05-28 | 315-608-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2008-05-28 | 315-608-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | WATERTOWN | NY |
| 2008-05-28 | 315-688-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COPENHAGEN | NY |
| 2008-05-22 | 315-307-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | SYRACUSE | NY |
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.