NumberResearchThousands-blocks in 630-974
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 630-974 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 630 blocks
Most active assignees, all time — NPA 630
New assignments by month
Sep 2026
Aug 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-08-08 | 630-974-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HINSDALE | IL |
| 2009-08-03 | 630-974-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | HINSDALE | IL |
| 2021-11-19 | 630-974-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HINSDALE | IL |
| 2006-08-16 | 630-974-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HINSDALE | IL |
| 2022-06-08 | 630-974-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HINSDALE | IL |
| 2011-12-08 | 630-974-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | HINSDALE | IL |
| 2006-03-08 | 630-974-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HINSDALE | IL |
| 2007-01-08 | 630-974-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HINSDALE | IL |
| 2007-12-12 | 630-974-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HINSDALE | IL |
| 2006-08-08 | 630-974-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HINSDALE | 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.