Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

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
—	405-797	not yet reported which blocks →	HINTON TEL. CO. OF HINTON OK, INC.	1995	EAKLY	OK
—	405-798	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BETHANY	OK
—	405-799	not yet reported which blocks →	SOUTHWESTERN BELL	9533	MOORE	OK
—	405-800	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	MOORE	OK
—	405-801	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	NORMAN	OK
—	405-802	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OKLA CITY	OK
—	405-804	0XXX1XXX2XXX8XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SPENCER	OK
—	405-805	3XXX4XXX6XXX9XXX · 2 holders which blocks →	ONVOY, LLC - OK	409F	YUKON	OK
—	405-806	0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	PAETEC ITEL, LLC	829J	MUSTANG	OK
—	405-807	0XXX1XXX2XXX4XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - OK	409F	NICOMAPARK	OK
—	405-808	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OKLA CITY	OK
—	405-809	0XXX2XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks →	ONVOY, LLC - OK	409F	NORMAN	OK
—	405-810	5XXX6XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	OK
—	405-812	2XXX which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-813	none assigned yet which blocks →	ONVOY, LLC - OK	409F	OKLA CITY	OK
—	405-814	3XXX5XXX6XXX · 2 holders which blocks →	ONVOY, LLC - OK	409F	MOORE	OK
—	405-815	0XXX1XXX3XXX4XXX7XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	OKLA CITY	OK
—	405-816	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-818	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-819	0XXX which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-820	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-821	0XXX which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-822	0XXX2XXX · 2 holders which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-823	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-824	0XXX2XXX which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-826	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-828	not yet reported which blocks →	PIONEER TEL. COOP., INC.	2018	DOVER	OK
—	405-830	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OKLA CITY	OK
—	405-831	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OKLA CITY	OK
—	405-833	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-834	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-838	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	OKLA CITY	OK
—	405-840	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-841	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-842	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-843	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-844	not yet reported which blocks →	SOUTHWESTERN BELL	9533	EDMOND	OK
—	405-848	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-849	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	BRITTON	OK
—	405-850	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
—	405-853	none assigned yet which blocks →	PIONEER TEL. COOP., INC.	2018	HENNESSEY	OK
—	405-858	0XXX8XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-865	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	SOUTHWESTERN BELL	9533	CARNEY	OK
—	405-867	0XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW	1165	MAYSVILLE	OK
—	405-869	4XXX6XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	MIDWEST CY	OK
—	405-872	2XXX6XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	NOBLE	OK
—	405-878	2XXX which blocks →	SOUTHWESTERN BELL	9533	SHAWNEE	OK
—	405-879	0XXX1XXX which blocks →	SOUTHWESTERN BELL	9533	BRITTON	OK
—	405-880	8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	STILLWATER	OK

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.