NumberResearchThousands-blocks in 774-397
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 774-397 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 774 blocks
Most active assignees, all time — NPA 774
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 774-397-0XXX | 0000–0999 | Available | STURBRIDGE | MA | ||
| 2019-10-01 | 774-397-1XXX | 1000–1999 | Assigned | AIRUS, INC. - MA | 428H | STURBRIDGE | MA |
| 2022-01-14 | 774-397-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STURBRIDGE | MA |
| 2025-04-09 | 774-397-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | STURBRIDGE | MA |
| 2022-01-14 | 774-397-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STURBRIDGE | MA |
| 2021-03-16 | 774-397-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STURBRIDGE | MA |
| 2021-05-10 | 774-397-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | STURBRIDGE | MA |
| 2020-06-10 | 774-397-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | STURBRIDGE | MA |
| — | 774-397-8XXX | 8000–8999 | Available | STURBRIDGE | MA | ||
| 2020-06-10 | 774-397-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | STURBRIDGE | MA |
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.