Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 412

IP HORIZON LLC 72

New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
2020-09-17	412-769-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	PTTSBGZON2	PA
2020-04-23	412-212-5XXX	5000–5999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2020-04-23	412-293-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	PTGSBNZN14	PA
2020-04-23	412-293-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN14	PA
2020-04-23	412-436-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	PTTSBGZON4	PA
2020-04-23	412-436-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON4	PA
2020-04-23	412-448-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	PTTSBGZON5	PA
2020-04-23	412-476-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTTSBGZON5	PA
2020-04-23	412-516-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	PTGSBNZN22	PA
2020-04-23	412-516-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN22	PA
2020-04-23	412-572-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON6	PA
2020-04-23	412-572-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTTSBGZON6	PA
2020-04-23	412-707-5XXX	5000–5999	Assigned	IP HORIZON LLC	515J	PTTSBGZON2	PA
2020-04-23	412-707-6XXX	6000–6999	Assigned	IP HORIZON LLC	515J	PTTSBGZON2	PA
2020-04-23	412-752-3XXX	3000–3999	Assigned	IP HORIZON LLC	515J	PTTSBGZON1	PA
2020-04-23	412-752-4XXX	4000–4999	Assigned	IP HORIZON LLC	515J	PTTSBGZON1	PA
2020-04-23	412-754-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN10	PA
2020-04-23	412-754-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTGSBNZN10	PA
2020-04-23	412-775-7XXX	7000–7999	Assigned	IP HORIZON LLC	515J	PTTSBGZON3	PA
2020-04-23	412-775-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON3	PA
2020-04-23	412-808-3XXX	3000–3999	Assigned	IP HORIZON LLC	515J	PTTSBGZON7	PA
2020-04-23	412-808-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTTSBGZON7	PA
2018-11-13	412-283-3XXX	3000–3999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2018-11-13	412-308-4XXX	4000–4999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2018-11-13	412-615-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTGSBNZN14	PA
2018-11-13	412-615-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	PTGSBNZN14	PA
2018-11-13	412-948-5XXX	5000–5999	Assigned	IP HORIZON LLC	515J	PTGSBNZN10	PA
2018-11-13	412-948-6XXX	6000–6999	Assigned	IP HORIZON LLC	515J	PTGSBNZN10	PA
2017-12-13	412-254-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON6	PA
2017-12-13	412-306-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON6	PA
2017-12-13	412-409-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2017-12-13	412-409-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2017-12-13	412-503-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON7	PA
2017-12-13	412-503-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	PTTSBGZON7	PA
2017-12-13	412-822-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON3	PA
2017-12-12	412-406-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTGSBNZN19	PA
2017-12-12	412-534-1XXX	1000–1999	Assigned	IP HORIZON LLC	515J	PTGSBNZN16	PA
2017-06-19	412-308-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2017-06-19	412-539-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON7	PA
2017-06-19	412-782-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTTSBGZON3	PA
2016-04-22	412-247-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON4	PA
2016-04-22	412-410-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON1	PA
2016-04-22	412-451-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTTSBGZON5	PA
2016-04-22	412-939-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTTSBGZON2	PA
2016-04-21	412-212-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTGSBNZN12	PA
2016-04-21	412-314-9XXX	9000–9999	Assigned	IP HORIZON LLC	515J	PTGSBNZN10	PA
2016-04-21	412-646-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN22	PA
2016-04-21	412-857-0XXX	0000–0999	Assigned	IP HORIZON LLC	515J	PTGSBNZN14	PA
2015-10-14	412-893-8XXX	8000–8999	Assigned	IP HORIZON LLC	515J	PTGSBNZN15	PA
2015-08-31	412-701-5XXX	5000–5999	Assigned	IP HORIZON LLC	515J	PTGSBNZN21	PA

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.