NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 503
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | 503-744-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLACKAMAS | OR |
| 2026-02-17 | 503-565-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MCMINNVL | OR |
| 2026-02-17 | 503-822-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHERWOOD | OR |
| 2025-08-06 | 503-344-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLACKAMAS | OR |
| 2025-06-18 | 503-600-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MOLALLA | OR |
| 2025-06-18 | 503-609-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CORBETT | OR |
| 2025-06-18 | 503-714-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAYTON | OR |
| 2025-06-18 | 503-800-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GERVAIS | OR |
| 2025-06-18 | 503-822-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHERWOOD | OR |
| 2025-06-18 | 503-898-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | REDLAND | OR |
| 2025-06-18 | 503-900-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LYONS | OR |
| 2025-06-18 | 503-996-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MOUNTANGEL | OR |
| 2025-06-16 | 503-487-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWBERG | OR |
| 2025-06-16 | 503-895-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HOOD LAND | OR |
| 2024-07-16 | 503-343-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLACKAMAS | OR |
| 2020-12-29 | 503-710-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WOODBURN | OR |
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.