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 205
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-11-02 | 205-653-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2017-11-02 | 205-653-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2015-02-24 | 205-971-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2013-10-01 | 205-685-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ALABASTER | AL |
| 2013-10-01 | 205-685-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ALABASTER | AL |
| 2013-05-16 | 205-721-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-29 | 205-638-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2007-08-28 | 205-678-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CHELSEA | AL |
| 2006-10-19 | 205-766-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-10-19 | 205-766-9XXX | 9000–9999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2006-06-22 | 205-685-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ALABASTER | AL |
| 2006-01-20 | 205-608-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | GARDENDALE | AL |
| 2006-01-17 | 205-590-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | WARRIOR | AL |
| 2005-04-05 | 205-678-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | CHELSEA | AL |
| 2005-02-20 | 205-524-0XXX | 0000–0999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2005-02-20 | 205-524-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
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.