Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 215

VERIZON PENNSYLVANIA, INC. 424

NEW CINGULAR WIRELESS PCS, LLC - DC 74

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 48

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 41

SPOK, INC. 36

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
2026-06-04	215-810	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN3	PA
2024-12-27	215-217	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN2	PA
2024-12-20	215-916	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISVL	PA
2023-10-24	215-507	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISVL	PA
2023-08-09	215-610	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2023-08-07	215-484	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - PA	547E	SOUDERTON	PA
2023-07-20	215-835	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISVL	PA
2023-07-18	215-445	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN2	PA
2023-06-05	215-556	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISVL	PA
2023-05-22	215-215	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	PHPHSBZN41	PA
2023-05-22	215-267	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2021-09-16	215-250	0–9 XXXwhole prefix which blocks →	ONVOY SPECTRUM, LLC	624H	PHLDLPHZN2	PA
2021-09-16	215-714	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN2	PA
2019-11-20	215-770	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN4	PA
2019-09-16	215-388	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN1	PA
2018-06-07	215-890	0–9 XXXwhole prefix which blocks →	BLOCK LINE SYSTEMS, LLC - PA	784E	PHLDLPHZN1	PA
2018-02-21	215-532	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHPHSBZN43	PA
2018-01-30	215-201	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	PHLDLPHZN1	PA
2017-06-26	215-936	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHPHSBZN43	PA
2015-11-12	215-709	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA	967E	PHLDLPHZN1	PA
2015-05-07	215-608	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2015-03-17	215-607	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2014-12-23	215-372	0–9 XXXall 10 · 5 holders which blocks →	INTRADO COMMUNICATIONS, LLC	835C	PHLDLPHZN1	PA
2014-09-30	215-845	0–9 XXXall 10 · 7 holders which blocks →	WIDE VOICE, LLC - PA	218H	PHLDLPHZN1	PA
2014-08-20	215-515	0–9 XXXall 10 · 3 holders which blocks →	AIRUS, INC. - PA	438H	PHLDLPHZN1	PA
2012-04-09	215-800	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	PHLDLPHZN1	PA
2011-12-23	215-251	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	PHLDLPHZN1	PA
2011-12-23	215-678	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	PHLDLPHZN1	PA
2011-12-20	215-278	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2011-05-18	215-999	0–9 XXXall 10 · 3 holders which blocks →	XTEL COMMUNICATIONS, INC.	854D	PHLDLPHZN1	PA
2011-04-12	215-617	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	PHLDLPHZN1	PA
2010-05-26	215-987	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	PHLDLPHZN3	PA
2009-12-28	215-995	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - PA	547E	PHLDLPHZN1	PA
2009-10-07	215-558	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	PHLDLPHZN1	PA
2009-03-05	215-303	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	PHLDLPHZN2	PA
2009-02-06	215-954	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	PHLDLPHZN2	PA
2008-12-05	215-909	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA
2008-03-13	215-383	0–9 XXXall 10 · 2 holders which blocks →	PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA	967E	PHLDLPHZN1	PA
2008-02-14	215-626	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	PHLDLPHZN2	PA
2007-10-15	215-391	0–9 XXXall 10 · 3 holders which blocks →	BLOCK LINE SYSTEMS, LLC - PA	784E	PHLDLPHZN1	PA
2007-06-13	215-921	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	PHLDLPHZN2	PA
2006-12-28	215-926	0–9 XXXwhole prefix which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
2006-02-22	215-286	0–9 XXXwhole prefix which blocks →	PAETEC ITEL, LLC	829J	PHLDLPHZN1	PA
2006-01-17	215-900	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN1	PA
2005-04-26	215-667	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	PHLDLPHZN1	PA
2005-03-29	215-207	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	PHLDLPHZN1	PA
2005-03-21	215-279	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2005-03-21	215-459	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2005-03-21	215-531	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2005-02-03	215-609	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	PHLDLPHZN1	PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.