NumberResearchThousands-blocks in 618-473
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 618-473 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 618 blocks
Most active assignees, all time — NPA 618
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-02-23 | 618-473-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | HECKER | IL |
| — | 618-473-1XXX | 1000–1999 | Available | HECKER | IL | ||
| — | 618-473-2XXX | 2000–2999 | Reserved | FRONTIER NORTH, INC. - IL | 1036 | HECKER | IL |
| — | 618-473-3XXX | 3000–3999 | Reserved | FRONTIER NORTH, INC. - IL | 1036 | HECKER | IL |
| — | 618-473-4XXX | 4000–4999 | Available | HECKER | IL | ||
| — | 618-473-5XXX | 5000–5999 | Available | HECKER | IL | ||
| 2026-06-25 | 618-473-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HECKER | IL |
| 2021-02-01 | 618-473-7XXX | 7000–7999 | Assigned | MCC NETWORK SERVICES, LLC | 075A | HECKER | IL |
| 2020-03-17 | 618-473-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | HECKER | IL |
| — | 618-473-9XXX | 9000–9999 | Reserved | FRONTIER NORTH, INC. - IL | 1036 | HECKER | IL |
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.