NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 464
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-07-28 | 464-258-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | CICERO | IL |
| 2026-06-24 | 464-287-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | OAK FOR SO | IL |
| 2026-05-18 | 464-223-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | PEOTONE | IL |
| 2026-03-23 | 464-258-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | CICERO | IL |
| 2024-12-20 | 464-223-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | PEOTONE | IL |
| 2022-01-28 | 464-777-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | WILLOW SPG | 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.