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 901

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 175

NEW CINGULAR WIRELESS PCS, LLC - GA 93

POWERTEL MEMPHIS LICENSES, INC. 64

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 36

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 35

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
2022-04-05	901-668	0–9 XXXall 10 · 4 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	COLLIERVL	TN
2022-03-14	901-665	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2022-02-23	901-883	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MEMPHIS	TN
2022-02-22	901-742	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ARLINGTON	TN
2022-02-08	901-664	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TN	4806	MEMPHIS	TN
2022-02-01	901-631	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2022-02-01	901-663	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2022-01-20	901-660	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	LAGRANGE	TN
2022-01-07	901-659	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2021-12-03	901-657	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	SOMERVILLE	TN
2021-11-17	901-658	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2021-11-15	901-656	0–9 XXXall 10 · 4 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	COLLIERVL	TN
2021-09-27	901-445	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	COVINGTON	TN
2021-09-08	901-648	0–9 XXXall 10 · 2 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	MEMPHIS	TN
2021-08-31	901-645	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MEMPHIS	TN
2021-08-25	901-632	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2021-06-22	901-621	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	VONAGE AMERICA LLC	197D	WESTWHITEV	TN
2021-06-22	901-625	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	COLLIERVL	TN
2021-06-22	901-627	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TN	525E	MOSCOW	TN
2021-04-13	901-902	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MEMPHIS	TN
2021-04-06	901-613	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	ARLINGTON	TN
2021-03-31	901-810	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2021-03-30	901-599	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	LAGRANGE	TN
2021-03-19	901-593	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	SOMERVILLE	TN
2021-03-03	901-557	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TN	525E	ARLINGTON	TN
2021-01-11	901-589	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	MEMPHIS	TN
2021-01-08	901-587	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2020-11-06	901-582	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MEMPHIS	TN
2020-11-02	901-571	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2020-09-29	901-560	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	MEMPHIS	TN
2020-09-03	901-558	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	MEMPHIS	TN
2020-08-27	901-554	0–9 XXXall 10 · 5 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2020-08-18	901-549	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	MEMPHIS	TN
2020-07-15	901-588	0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	MASON	TN
2020-07-15	901-699	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	COVINGTON	TN
2020-07-15	901-799	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	COLLIERVL	TN
2020-07-15	901-899	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	MOSCOW	TN
2020-07-15	901-955	5XXX9XXX · 2 holders which blocks →	FRACTEL, LLC	965H	ROSEMARK	TN
2020-07-06	901-538	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	MEMPHIS	TN
2020-06-17	901-519	0–9 XXXall 10 · 7 holders which blocks →	HD CARRIER LLC	321J	MEMPHIS	TN
2020-03-31	901-506	0–9 XXXall 10 · 3 holders which blocks →	INTRADO COMMUNICATIONS, LLC	845C	MEMPHIS	TN
2020-03-09	901-499	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ARLINGTON	TN
2019-10-23	901-479	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TN	525E	MEMPHIS	TN
2019-10-18	901-467	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	MEMPHIS	TN
2019-10-01	901-460	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - TN	525E	WESTWHITEV	TN
2019-10-01	901-464	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2019-10-01	901-676	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TN	525E	LAGRANGE	TN
2019-08-26	901-456	0–9 XXXall 10 · 3 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	MEMPHIS	TN
2019-07-23	901-455	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MEMPHIS	TN
2019-07-03	901-450	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	MEMPHIS	TN

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.