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 864
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-08-19 | 864-448-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
| 2016-06-03 | 864-671-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EASLEY | SC |
| 2016-05-27 | 864-586-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPARTANBG | SC |
| 2015-08-20 | 864-539-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SENECA | SC |
| 2015-06-18 | 864-568-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
| 2015-05-20 | 864-662-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREER | SC |
| 2014-07-10 | 864-622-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANDERSON | SC |
| 2014-06-06 | 864-603-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
| 2014-01-13 | 864-707-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPARTANBG | SC |
| 2013-05-15 | 864-534-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
| 2013-01-23 | 864-674-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | JONESVILLE | SC |
| 2012-11-26 | 864-358-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLINTON | SC |
| 2012-01-11 | 864-719-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SALEM | SC |
| 2011-10-26 | 864-210-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HONEA PATH | SC |
| 2011-05-23 | 864-936-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANTIOCH | SC |
| 2011-05-19 | 864-441-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | UNION | SC |
| 2011-03-15 | 864-438-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
| 2011-03-09 | 864-659-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BELTON | SC |
| 2011-02-09 | 864-362-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | JOANNA | SC |
| 2010-12-10 | 864-481-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SIX MILE | SC |
| 2010-11-02 | 864-219-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLACKSBURG | SC |
| 2010-11-02 | 864-372-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LIBERTY | SC |
| 2010-11-02 | 864-406-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COWPENS | SC |
| 2010-11-02 | 864-475-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PACOLET | SC |
| 2010-11-02 | 864-502-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PENDLETON | SC |
| 2010-11-02 | 864-952-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CENTRAL | SC |
| 2009-12-23 | 864-625-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PIEDMONT | SC |
| 2009-02-11 | 864-841-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WILLIAMSTN | SC |
| 2009-02-04 | 864-345-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPARTANBG | SC |
| 2009-02-04 | 864-402-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PELZER | SC |
| 2009-02-04 | 864-485-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYMAN | SC |
| 2009-02-04 | 864-507-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PICKENS | SC |
| 2009-02-04 | 864-613-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WESTMINSTR | SC |
| 2009-02-04 | 864-649-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GAFFNEY | SC |
| 2009-02-04 | 864-663-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLUE RIDGE | SC |
| 2009-02-04 | 864-689-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TRAVESREST | SC |
| 2009-02-04 | 864-722-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLEMSON | SC |
| 2009-02-04 | 864-724-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FOUNTANINN | SC |
| 2009-02-04 | 864-916-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WALHALLA | SC |
| 2009-02-04 | 864-973-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SENECA | SC |
| 2009-02-03 | 864-328-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANDERSON | SC |
| 2009-02-03 | 864-469-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREER | SC |
| 2009-02-03 | 864-810-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EASLEY | SC |
| 2009-01-12 | 864-263-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREENVILLE | SC |
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.