Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 561

BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 198

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 101

NEW CINGULAR WIRELESS PCS, LLC - GA 84

OMNIPOINT MIAMI E LICENSE, LLC 71

ONVOY, LLC - FL 48

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 NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2016-02-01	561-264	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - FL	937C	PAHOKEE	FL
2016-01-20	561-567	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - FL	937C	WPALMBEACH	FL
2016-01-19	561-631	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2015-12-21	561-250	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - FL	937C	JUPITER	FL
2015-12-09	561-814	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	WPALMBEACH	FL
2015-11-18	561-220	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - FL	937C	WPALMBEACH	FL
2015-11-13	561-763	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF FLORIDA, LLC - FL	902E	BELLEGLADE	FL
2015-11-04	561-562	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2015-10-15	561-660	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2015-08-26	561-618	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL	8664	WPALMBEACH	FL
2015-08-26	561-619	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2015-08-19	561-617	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2015-06-03	561-810	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	BOYNTONBCH	FL
2015-04-28	561-403	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	DELRAY BCH	FL
2015-03-27	561-295	0–9 XXXall 10 · 5 holders which blocks →	INTEGRATED PATH COMMUNICATIONS, LLC - FL	010H	JUPITER	FL
2015-03-12	561-898	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - FL	937C	WPALMBEACH	FL
2015-01-27	561-530	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	WPALMBEACH	FL
2014-12-04	561-614	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL	8664	WPALMBEACH	FL
2014-11-19	561-570	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2014-10-16	561-563	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2014-10-15	561-475	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2014-10-02	561-510	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	JUPITER	FL
2014-09-30	561-609	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	BOCA RATON	FL
2014-09-30	561-612	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	WPALMBEACH	FL
2014-09-25	561-757	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2014-07-17	561-517	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2014-05-16	561-513	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2014-04-17	561-508	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2014-04-11	561-501	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	DELRAY BCH	FL
2014-03-18	561-571	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL	8664	BOCA RATON	FL
2014-03-13	561-440	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2014-03-04	561-430	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	BOCA RATON	FL
2014-03-03	561-480	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2013-12-30	561-708	0–9 XXXall 10 · 6 holders which blocks →	AT&T - LOCAL	7421	BELLEGLADE	FL
2013-12-12	561-806	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BOYNTONBCH	FL
2013-09-19	561-701	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2013-09-16	561-507	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2013-09-13	561-469	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL	8664	WPALMBEACH	FL
2013-09-13	561-808	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2013-09-13	561-990	0–9 XXXall 10 · 5 holders which blocks →	INVOXIO INCORPORATED	158H	BOCA RATON	FL
2013-08-29	561-425	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	WPALMBEACH	FL
2013-04-25	561-557	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2013-03-19	561-410	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2013-02-21	561-229	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2013-01-23	561-408	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2012-12-31	561-270	0–9 XXXall 10 · 7 holders which blocks →	AT&T ENTERPRISES, LLC	516C	DELRAY BCH	FL
2012-12-27	561-409	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	BOCA RATON	FL
2012-11-21	561-406	0–9 XXXall 10 · 6 holders which blocks →	ITS FIBER, LLC	572G	JUPITER	FL
2012-11-14	561-360	0–9 XXXall 10 · 3 holders which blocks →	ITS FIBER, LLC	572G	WPALMBEACH	FL
2012-11-09	561-402	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.