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 661
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-08-11 | 661-417-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2016-08-17 | 661-582-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2016-05-16 | 661-568-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2016-05-16 | 661-582-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2016-03-07 | 661-585-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2016-02-19 | 661-309-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2015-10-09 | 661-522-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2015-09-29 | 661-568-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2015-07-29 | 661-542-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2015-07-28 | 661-425-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2015-07-21 | 661-234-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2015-07-21 | 661-522-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2015-04-23 | 661-522-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2015-04-22 | 661-523-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2015-03-13 | 661-383-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2015-03-03 | 661-485-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2014-12-03 | 661-494-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2014-10-31 | 661-485-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2014-04-18 | 661-941-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2014-04-10 | 661-471-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2013-07-23 | 661-481-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2013-07-22 | 661-309-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2013-07-22 | 661-471-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2013-06-10 | 661-360-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2013-06-10 | 661-441-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2013-06-10 | 661-441-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2013-06-10 | 661-941-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2013-06-10 | 661-941-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2013-03-14 | 661-360-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2013-03-14 | 661-481-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2013-03-13 | 661-402-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL AGDL | CA |
| 2013-03-13 | 661-441-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2013-03-12 | 661-482-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDWARDS | CA |
| 2013-03-12 | 661-941-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2012-06-13 | 661-418-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2012-03-14 | 661-418-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2012-03-12 | 661-360-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2012-03-06 | 661-382-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2011-03-02 | 661-480-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2010-09-24 | 661-888-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2010-08-18 | 661-579-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2010-08-17 | 661-388-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2010-08-06 | 661-347-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA SGCC | CA |
| 2009-01-23 | 661-579-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2009-01-23 | 661-579-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
| 2008-11-12 | 661-505-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNCA NHCS | CA |
| 2008-07-24 | 661-480-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2008-07-24 | 661-794-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2008-07-16 | 661-480-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLDL PLDL | CA |
| 2008-05-12 | 661-802-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LANCASTER | CA |
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.