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
2020-02-05	365-663	not yet reported which blocks →	Bell Canada	8051	Stoney Creek	—
2020-02-05	365-726	not yet reported which blocks →	Bell Canada	8051	Oakville	—
2020-02-05	419-904	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	COONEY	OH
2020-02-05	424-415	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	CMTN GRDN	CA
2020-02-05	475-265	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CT	199F	TRUMBULL	CT
2020-02-05	513-640	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH	6025	LTL MIAMI	OH
2020-02-05	516-685	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	COLDSPGHBR	NY
2020-02-05	562-459	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	DOWNEY	CA
2020-02-05	571-453	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	WSNGTNZN17	VA
2020-02-05	607-394	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	ADDISON	NY
2020-02-05	615-912	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TN	114F	HENDERSNVL	TN
2020-02-05	680-237	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	ADAMS	NY
2020-02-05	716-521	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	AKRON	NY
2020-02-05	762-238	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	NOBLE	GA
2020-02-05	773-232	0–9 XXXwhole prefix which blocks →	ONVOY, LLC	224C	CHICGOZN10	IL
2020-02-05	828-546	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MORGANTON	NC
2020-02-05	845-696	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	AMENIA	NY
2020-02-05	867-525	not yet reported which blocks →	Bell Mobility	6574	Chesterfield Inlet	—
2020-02-05	878-229	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	WASHINGTON	PA
2020-02-05	929-518	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	NWYRCYZN03	NY
2020-02-05	929-537	0–9 XXXwhole prefix which blocks →	LTE WIRELESS INC D/B/A LTE WIRELESS - NY	452J	NWYRCYZN04	NY
2020-02-05	980-580	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - NC	638E	CHARLOTTE	NC
2020-02-04	202-933	0–9 XXXall 10 · 3 holders which blocks →	VONAGE AMERICA LLC	197D	WSHNGTNZN1	DC
2020-02-04	218-812	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MN	184D	COLERAINE	MN
2020-02-04	469-790	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MCKINNEY	TX
2020-02-04	530-612	9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	RANCHOTHMA	CA
2020-02-04	551-554	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - NJ	637C	JERSEYCITY	NJ
2020-02-04	561-486	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	WPALMBEACH	FL
2020-02-04	612-427	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2020-02-04	626-496	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	ALHAMBRA	CA
2020-02-04	808-207	0–9 XXXall 10 · 3 holders which blocks →	AIRUS, INC. - HI	486J	HONOLULU	HI
2020-02-04	858-298	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SNDG LVTA	CA
2020-02-04	862-349	0–9 XXXall 10 · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	PASSAIC	NJ
2020-02-04	864-854	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - SC	548E	GREENWOOD	SC
2020-02-04	867-520	not yet reported which blocks →	Bell Mobility	6574	Kinngait	—
2020-02-04	867-521	not yet reported which blocks →	Bell Mobility	6574	Coral Harbour	—
2020-02-04	867-522	not yet reported which blocks →	Bell Mobility	6574	Sanikiluaq	—
2020-02-04	867-523	not yet reported which blocks →	Bell Mobility	6574	Kimmirut	—
2020-02-04	867-524	not yet reported which blocks →	Bell Mobility	6574	Whale Cove	—
2020-02-04	867-526	not yet reported which blocks →	Bell Mobility	6574	Arctic Bay	—
2020-02-04	867-527	not yet reported which blocks →	Bell Mobility	6574	Sanirajak	—
2020-02-04	867-528	not yet reported which blocks →	Bell Mobility	6574	Qikiqtarjuaq	—
2020-02-04	873-772	not yet reported which blocks →	Iristel Inc.	154E	Rouyn-Noranda	—
2020-02-04	979-327	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ANGLETON	TX
2020-02-03	236-246	not yet reported which blocks →	Iristel Inc.	154E	Richmond	—
2020-02-03	628-286	0–9 XXXall 10 · 4 holders which blocks →	WIDE VOICE, LLC - CA	252F	SNFC MT-EV	CA
2020-02-03	639-709	not yet reported which blocks →	Iristel Inc.	154E	Regina	—
2020-02-03	731-284	0XXX1XXX4XXX8XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	HORNBEAK	TN
2020-02-03	828-543	0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	CLAREMONT	NC
2020-02-03	867-529	not yet reported which blocks →	Bell Mobility	6574	Grise Fiord	—

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.