Recent prefix assignments

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

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, last 30 days

Rogers Communications Canada Inc. (Wireless) 46

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 27

NEW CINGULAR WIRELESS PCS, LLC - IL 23

ONVOY, LLC - CA 19

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
—	518-312	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	ALBANY	NY
—	518-314	0XXX2XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	PAETEC ITEL, LLC	829J	PLATTSBG	NY
—	518-316	2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	SARATOGSPG	NY
—	518-320	0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	TC SYSTEMS, INC. - NY	7140	ALBANY	NY
—	518-321	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	GLENSFALLS	NY
—	518-322	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TC SYSTEMS, INC. - NY	7140	ALBANY	NY
—	518-323	0XXX1XXX2XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks →	TVC ALBANY, INC. DBA FIRSTLIGHT FIBER	7989	SARANAC LK	NY
—	518-324	none assigned yet which blocks →	PRIMELINK, INC. - NY	0065	PLATTSBG	NY
—	518-325	not yet reported which blocks →	TACONIC TEL. CORP.	0084	HILLSDALE	NY
—	518-326	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks →	PAETEC ITEL, LLC	829J	TROY	NY
—	518-327	0XXX4XXX8XXX which blocks →	FRONTIER COMMUNICATIONS OF AUSABLE VALLEY, INC.	0072	PAULSMITHS	NY
—	518-328	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	TROY	NY
—	518-329	9XXX which blocks →	TACONIC TEL. CORP.	0084	COPAKE	NY
—	518-330	none assigned yet which blocks →	METROPCS, INC.	5562	ALBANY	NY
—	518-331	none assigned yet which blocks →	METROPCS, INC.	5562	ALBANY	NY
—	518-332	4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	GLOVERSVL	NY
—	518-336	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	TC SYSTEMS, INC. - NY	7140	CASTLETON	NY
—	518-337	0XXX1XXX3XXX6XXX7XXX8XXX9XXX which blocks →	TC SYSTEMS, INC. - NY	7140	ALBANY	NY
—	518-338	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	GLENSFALLS	NY
—	518-339	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ALBANY	NY
—	518-341	not yet reported which blocks →	SPOK, INC.	6630	SCHENCTADY	NY
—	518-342	not yet reported which blocks →	SPOK, INC.	6630	SCHENCTADY	NY
—	518-343	not yet reported which blocks →	SPOK, INC.	6630	ALBANY	NY
—	518-344	0XXX1XXX4XXX6XXX8XXX9XXX · 5 holders which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-346	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-347	7XXX9XXX · 2 holders which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-348	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-349	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	ALBANY	NY
—	518-350	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PAETEC ITEL, LLC	829J	SARATOGSPG	NY
—	518-351	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	TC SYSTEMS, INC. - NY	7140	SCHROON LK	NY
—	518-352	3XXX4XXX5XXX6XXX · 3 holders which blocks →	CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY	0096	BLUEMTLAKE	NY
—	518-355	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-356	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-357	3XXX7XXX8XXX · 2 holders which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-358	0XXX1XXX5XXX7XXX8XXX · 5 holders which blocks →	VERIZON NEW YORK, INC.	9104	FTCOVINGTN	NY
—	518-359	0XXX1XXX5XXX6XXX · 3 holders which blocks →	VERIZON NEW YORK, INC.	9104	TUPPERLAKE	NY
—	518-360	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ALBANY	NY
—	518-361	5XXX8XXX9XXX which blocks →	METROPCS, INC.	5562	GLENSFALLS	NY
—	518-362	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	COLONIE	NY
—	518-363	1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	VERIZON NEW YORK, INC.	9104	BALLSTNSPA	NY
—	518-364	not yet reported which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	ALBANY	NY
—	518-365	none assigned yet which blocks →	METROPCS, INC.	5562	ALBANY	NY
—	518-366	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ALBANY	NY
—	518-367	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	ALBANY	NY
—	518-368	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	ALBANY	NY
—	518-369	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	ALBANY	NY
—	518-370	6XXX which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-371	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-372	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY
—	518-373	not yet reported which blocks →	VERIZON NEW YORK, INC.	9104	SCHENCTADY	NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.