NumberResearchThousands-blocks in 845-363
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 845-363 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 845 blocks
Most active assignees, all time — NPA 845
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-09-14 | 845-363-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BREWSTER | NY |
| 2010-05-27 | 845-363-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | BREWSTER | NY |
| 2013-03-12 | 845-363-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | BREWSTER | NY |
| 2020-05-13 | 845-363-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BREWSTER | NY |
| — | 845-363-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BREWSTER | NY |
| 2013-03-12 | 845-363-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BREWSTER | NY |
| 2005-04-21 | 845-363-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | BREWSTER | NY |
| 2012-08-03 | 845-363-7XXX | 7000–7999 | Assigned | TELENGY L.L.C. - NY | 473G | BREWSTER | NY |
| 2011-06-20 | 845-363-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | BREWSTER | NY |
| 2016-11-23 | 845-363-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BREWSTER | 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.