NumberResearchThousands-blocks in 440-853
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 440-853 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 440 blocks
Most active assignees, all time — NPA 440
New assignments by month
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2014-09-22 | 440-853-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PAINESVL | OH |
| 2012-02-17 | 440-853-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PAINESVL | OH |
| — | 440-853-2XXX | 2000–2999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | PAINESVL | OH |
| 2015-01-07 | 440-853-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | PAINESVL | OH |
| 2010-08-27 | 440-853-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | PAINESVL | OH |
| 2006-10-17 | 440-853-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | PAINESVL | OH |
| 2008-08-14 | 440-853-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OH | 464C | PAINESVL | OH |
| 2008-08-14 | 440-853-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OH | 464C | PAINESVL | OH |
| 2008-04-16 | 440-853-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PAINESVL | OH |
| 2014-08-08 | 440-853-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | PAINESVL | OH |
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.