Recent prefix assignments

7 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, last 30 days — NPA 479

NEW CINGULAR WIRELESS PCS, LLC - IL 3

ONVOY, LLC - AR 2

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 2

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
2002-01-24	479-599	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SILOAM SPG	AR
2001-10-29	479-886	8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	RUSSELLVL	AR
2001-10-23	479-799	0XXX2XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	T-MOBILE USA, INC.	6529	FAYETTEVL	AR
2001-10-23	479-926	2XXX3XXX4XXX5XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FORT SMITH	AR
2001-09-21	479-935	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	FAYETTEVL	AR
2001-07-19	479-463	0XXX9XXX which blocks →	SOUTHWESTERN BELL	9533	FAYETTEVL	AR
2001-06-27	479-426	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ROGERS	AR
2001-06-20	479-879	8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	FAYETTEVL	AR
2001-06-12	479-861	1XXX2XXX3XXX4XXX6XXX7XXX · 3 holders which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1143	SILOAM SPG	AR
2001-05-08	479-385	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MENA	AR
2001-04-25	479-314	not yet reported which blocks →	SOUTHWESTERN BELL	9533	FORT SMITH	AR
2001-04-12	479-313	6XXX7XXX8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FAYETTEVL	AR
2001-03-23	479-544	7XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BENTONVL	AR
2001-03-13	479-561	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FORT SMITH	AR
2001-03-08	479-215	8XXX which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1143	SILOAM SPG	AR
2001-03-08	479-746	6XXX7XXX · 2 holders which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1142	CLARKSVL	AR
2001-03-01	479-573	3XXX4XXX6XXX8XXX9XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	FORT SMITH	AR
2001-02-20	479-508	6XXX which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1142	OZARK	AR
2001-02-12	479-877	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	METROPCS, INC.	5562	ROGERS	AR
2001-02-01	479-502	7XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FAYETTEVL	AR
2001-02-01	479-522	5XXX6XXX8XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FORT SMITH	AR
—	479-201	0XXX which blocks →	SOUTHWESTERN BELL	9533	FORT SMITH	AR
—	479-203	0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 5 holders which blocks →	SOUTHWESTERN BELL TELEPHONE COMPANY - AR	8870	ELMSPRINGS	AR
—	479-204	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BENTONVL	AR
—	479-205	not yet reported which blocks →	SOUTHWESTERN BELL TELEPHONE COMPANY - AR	8870	ELMSPRINGS	AR
—	479-211	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	AR
—	479-222	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	FORT SMITH	AR
—	479-226	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	SOUTHWESTERN BELL	9533	FORT SMITH	AR
—	479-229	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1142	DARDANELLE	AR
—	479-232	not yet reported which blocks →	MADISON COUNTY TEL. CO., INC.	1709	AURORA	AR
—	479-234	0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	MENA	AR
—	479-235	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AR	196F	VAN BUREN	AR
—	479-236	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FAYETTEVL	AR
—	479-238	none assigned yet which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1143	SILOAM SPG	AR
—	479-243	9XXX which blocks →	SOUTHWESTERN BELL	9533	MENA	AR
—	479-246	8XXX which blocks →	SOUTHWESTERN BELL	9533	ROGERS	AR
—	479-248	not yet reported which blocks →	BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC	1142	ELMSPRINGS	AR
—	479-249	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	FAYETTEVL	AR
—	479-251	0XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	FAYETTEVL	AR
—	479-253	not yet reported which blocks →	SOUTHWESTERN BELL	9533	EUREKA SPG	AR
—	479-254	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BENTONVL	AR
—	479-255	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	HACKETT	AR
—	479-262	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	VAN BUREN	AR
—	479-263	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	FAYETTEVL	AR
—	479-264	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	RUSSELLVL	AR
—	479-266	not yet reported which blocks →	PRAIRIE GROVE TELEPHONE COMPANY	1718	FARMINGTON	AR
—	479-267	not yet reported which blocks →	PRAIRIE GROVE TELEPHONE COMPANY	1718	FARMINGTON	AR
—	479-269	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	MANSFIELD	AR
—	479-271	not yet reported which blocks →	SOUTHWESTERN BELL	9533	BENTONVL	AR
—	479-272	not yet reported which blocks →	ARKWEST COMMUNICATIONS, INC.	1734	PLAINVIEW	AR

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.