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 678
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Apr 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 |
|---|---|---|---|---|---|---|---|
| 2017-04-14 | 678-434-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2017-04-14 | 678-434-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-11-15 | 678-529-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-11-15 | 678-529-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-11-15 | 678-529-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-11-15 | 678-529-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2011-03-09 | 678-659-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2010-01-19 | 678-404-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2010-01-19 | 678-404-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2009-09-25 | 678-732-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA | GA |
| 2008-09-30 | 678-745-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | BUFORD | GA |
| 2008-06-13 | 678-694-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2008-06-13 | 678-694-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2008-06-13 | 678-694-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2008-06-13 | 678-694-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2008-06-13 | 678-694-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-11-14 | 678-765-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | BUFORD | GA |
| 2006-08-08 | 678-535-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | CARTERSVL | GA |
| 2006-07-25 | 678-212-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | COVINGTON | GA |
| 2006-05-17 | 678-765-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | BUFORD | GA |
| 2006-05-16 | 678-312-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-05-16 | 678-312-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2006-04-28 | 678-965-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | CUMMING | GA |
| 2006-04-11 | 678-965-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | CUMMING | GA |
| 2006-02-17 | 678-604-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA SO | GA |
| 2006-02-17 | 678-604-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA SO | GA |
| 2006-02-17 | 678-604-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA SO | GA |
| 2006-02-17 | 678-604-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA SO | GA |
| 2006-02-17 | 678-604-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA SO | GA |
| 2005-11-03 | 678-248-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2005-09-26 | 678-582-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | GRANTVILLE | GA |
| 2005-09-26 | 678-582-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | GRANTVILLE | GA |
| 2005-09-26 | 678-582-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | GRANTVILLE | GA |
| 2005-02-07 | 678-245-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
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.