NumberResearchThousands-blocks in 817-873
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 817-873 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 817 blocks
Most active assignees, all time — NPA 817
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-04-03 | 817-873-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | GRAPEVINE | TX |
| 2013-04-03 | 817-873-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | GRAPEVINE | TX |
| 2016-03-23 | 817-873-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2016-01-20 | 817-873-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2015-01-07 | 817-873-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | GRAPEVINE | TX |
| 2013-02-05 | 817-873-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | GRAPEVINE | TX |
| 2016-03-23 | 817-873-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2015-02-11 | 817-873-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | GRAPEVINE | TX |
| 2016-06-21 | 817-873-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GRAPEVINE | TX |
| 2017-03-22 | 817-873-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | GRAPEVINE | TX |
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.