NumberResearchRecent thousands-block assignments
0 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, all time — NPA 315
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-15 | 315-547-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | ONEIDA | NY |
| 2021-06-29 | 315-998-6XXX | 6000–6999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | MORRISTOWN | NY |
| 2016-03-22 | 315-347-7XXX | 7000–7999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | HERMON | NY |
| 2016-01-11 | 315-287-8XXX | 8000–8999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | GOUVERNEUR | NY |
| 2016-01-11 | 315-562-6XXX | 6000–6999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | EDWARDS | NY |
| 2012-03-20 | 315-322-6XXX | 6000–6999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | MADRID | NY |
| 2012-03-20 | 315-388-0XXX | 0000–0999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | WADDINGTON | NY |
| 2011-10-27 | 315-344-8XXX | 8000–8999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | HEUVELTON | NY |
| 2011-08-18 | 315-353-0XXX | 0000–0999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | NORWOOD | NY |
| 2011-08-18 | 315-384-7XXX | 7000–7999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | NORFOLK | NY |
| 2010-07-15 | 315-848-4XXX | 4000–4999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | STAR LAKE | NY |
| 2008-05-20 | 315-541-3XXX | 3000–3999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | OGDENSBURG | NY |
| 2004-10-30 | 315-705-2XXX | 2000–2999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | MASSENA | NY |
| 2004-10-30 | 315-714-3XXX | 3000–3999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | CANTON | NY |
| 2004-09-21 | 315-274-9XXX | 9000–9999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | POTSDAM | 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.