NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 276
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2014-05-30 | 276-302-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | CLINTWOOD | VA |
| 2014-05-30 | 276-318-5XXX | 5000–5999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | PENINGTNGP | VA |
| 2014-05-30 | 276-383-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | ST CHARLES | VA |
| 2014-05-30 | 276-445-2XXX | 2000–2999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | CUMBERLDGP | VA |
| 2014-05-30 | 276-455-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | COEBURN | VA |
| 2014-05-30 | 276-524-5XXX | 5000–5999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | BIGSTONEGP | VA |
| 2014-05-30 | 276-565-4XXX | 4000–4999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | APPALACHIA | VA |
| 2014-05-30 | 276-738-5XXX | 5000–5999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | ST PAUL | VA |
| 2014-05-30 | 276-796-6XXX | 6000–6999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | POUND | VA |
| 2014-05-30 | 276-832-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | JONESVILLE | VA |
| 2014-05-30 | 276-883-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | LEBANON | VA |
| 2013-02-26 | 276-437-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | NORTON | VA |
| 2011-07-25 | 276-447-1XXX | 1000–1999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | MORRISONCY | VA |
| 2009-01-20 | 276-885-1XXX | 1000–1999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | GATE CITY | VA |
| 2004-10-25 | 276-591-1XXX | 1000–1999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | BRISTOL | VA |
| 2003-11-17 | 276-591-5XXX | 5000–5999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | BRISTOL | VA |
| 2003-06-20 | 276-591-4XXX | 4000–4999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | BRISTOL | VA |
| 2002-11-05 | 276-698-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | ABINGDON | VA |
| 2002-05-14 | 276-591-3XXX | 3000–3999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | BRISTOL | VA |
| 2002-03-29 | 276-690-2XXX | 2000–2999 | Assigned | MOUNTAINET TELEPHONE COMPANY - VA | 3185 | GATE CITY | VA |
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.