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 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
2004-11-23	215-307	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN2	PA
2004-10-20	215-301	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-20	215-400	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-20	215-410	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-20	215-586	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-20	215-834	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-20	215-910	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-10-13	215-253	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	PHLDLPHZN1	PA
2004-08-18	215-200	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-02-24	215-847	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-02-24	215-908	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2002-11-15	215-240	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	PHLDLPHZN2	PA
2002-10-01	215-237	none assigned yet which blocks →	METROPCS, INC.	5562	PHPHSBZN33	PA
2002-06-26	215-550	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	YMAX COMMUNICATIONS CORP. - PA	283E	NEWTOWN	PA
2002-05-14	215-302	0XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	PHPHSBZN44	PA
2002-05-14	215-809	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	PHPHSBZN43	PA
2002-02-27	215-989	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	PHLDLPHZN1	PA
2001-08-03	215-395	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	PHPHSBZN38	PA
2001-08-03	215-792	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	PHPHSBZN45	PA
2001-08-03	215-866	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NETCARRIER TELECOM, INC. - PA	5494	PHLDLPHZN3	PA
2001-07-10	215-666	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MORRISVL	PA
2001-05-23	215-300	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2001-05-08	215-710	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - PA	7309	PHPHSBZN43	PA
2001-04-10	215-510	4XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA
2001-04-04	215-272	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HARLEYSVL	PA
—	215-202	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHPHSBZN41	PA
—	215-203	1XXX2XXX4XXX6XXX · 2 holders which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-204	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-205	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA
—	215-206	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHPHSBZN33	PA
—	215-208	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHPHSBZN43	PA
—	215-209	3XXX9XXX · 2 holders which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-210	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	XXXXXXXXXX	PA
—	215-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	PA
—	215-212	not yet reported which blocks →	SPOK, INC.	6630	PHLDLPHZN1	PA
—	215-213	not yet reported which blocks →	SPOK, INC.	6630	PHLDLPHZN1	PA
—	215-214	5XXX9XXX · 2 holders which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN4	PA
—	215-216	not yet reported which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - PA	7309	PHLDLPHZN1	PA
—	215-218	8XXX which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-219	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	PHLDLPHZN2	PA
—	215-220	0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA	7434	PHLDLPHZN2	PA
—	215-221	2XXX4XXX9XXX · 2 holders which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-222	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN2	PA
—	215-223	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-224	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN3	PA
—	215-225	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-226	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-227	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-228	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA
—	215-229	not yet reported which blocks →	VERIZON PENNSYLVANIA, INC.	9208	PHLDLPHZN1	PA

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.