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 409
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-02-28 | 409-305-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | BEAUMONT | TX |
| 2022-09-29 | 409-295-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2022-09-29 | 409-295-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2022-04-27 | 409-270-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HTCHCCKSNF | TX |
| 2019-10-07 | 409-800-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2016-03-21 | 409-632-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2015-02-24 | 409-927-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HTCHCCKSNF | TX |
| 2014-12-02 | 409-359-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2014-06-20 | 409-220-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2013-03-18 | 409-229-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2012-12-13 | 409-632-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2010-08-16 | 409-440-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | HTCHCCKSNF | TX |
| 2008-02-15 | 409-539-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2008-02-01 | 409-797-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2007-04-05 | 409-316-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | HTCHCCKSNF | TX |
| 2006-12-04 | 409-655-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2006-12-04 | 409-974-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2006-08-25 | 409-497-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
| 2006-03-27 | 409-229-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | TXSCYMARQU | TX |
| 2005-09-07 | 409-316-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | HTCHCCKSNF | TX |
| 2005-06-23 | 409-497-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | GALVESTON | TX |
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.