NumberResearchThousands-blocks in 413-412
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 413-412 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 413 blocks
Most active assignees, all time — NPA 413
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-07-13 | 413-412-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NORTHADAMS | MA |
| 2016-09-23 | 413-412-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | NORTHADAMS | MA |
| 2018-10-04 | 413-412-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2019-01-11 | 413-412-3XXX | 3000–3999 | Assigned | CRC COMMUNICATIONS OF MAINE, INC. - MA | 236F | NORTHADAMS | MA |
| 2025-12-05 | 413-412-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2020-11-02 | 413-412-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NORTHADAMS | MA |
| 2026-06-30 | 413-412-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
| 2021-09-29 | 413-412-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | NORTHADAMS | MA |
| 2021-02-04 | 413-412-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | NORTHADAMS | MA |
| 2020-09-23 | 413-412-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NORTHADAMS | MA |
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.