NumberResearchThousands-blocks in 484-856
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 484-856 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 484 blocks
Most active assignees, all time — NPA 484
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 484-856-0XXX | 0000–0999 | Available | HELLERTOWN | PA | ||
| 2017-07-18 | 484-856-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | HELLERTOWN | PA |
| 2007-08-21 | 484-856-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HELLERTOWN | PA |
| — | 484-856-3XXX | 3000–3999 | Available | HELLERTOWN | PA | ||
| 2010-02-10 | 484-856-4XXX | 4000–4999 | Assigned | BLOCK LINE SYSTEMS, LLC - PA | 784E | HELLERTOWN | PA |
| — | 484-856-5XXX | 5000–5999 | Available | HELLERTOWN | PA | ||
| — | 484-856-6XXX | 6000–6999 | Reserved | PAETEC ITEL, LLC | 829J | HELLERTOWN | PA |
| 2023-05-25 | 484-856-7XXX | 7000–7999 | Assigned | ONVOY, LLC - PA | 547E | HELLERTOWN | PA |
| 2013-04-10 | 484-856-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | HELLERTOWN | PA |
| 2013-04-10 | 484-856-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | HELLERTOWN | PA |
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.