NumberResearchThousands-blocks in 845-678
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 845-678 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 |
|---|---|---|---|---|---|---|---|
| — | 845-678-0XXX | 0000–0999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| — | 845-678-1XXX | 1000–1999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| — | 845-678-2XXX | 2000–2999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| 2005-02-17 | 845-678-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | SPRING VLY | NY |
| — | 845-678-4XXX | 4000–4999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| 2021-10-19 | 845-678-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPRING VLY | NY |
| 2002-01-17 | 845-678-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | SPRING VLY | NY |
| 2019-05-06 | 845-678-7XXX | 7000–7999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | SPRING VLY | NY |
| 2008-09-04 | 845-678-8XXX | 8000–8999 | Assigned | XCHANGE TELECOM CORP. - NY | 325B | SPRING VLY | NY |
| 2002-08-26 | 845-678-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | SPRING VLY | 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.