Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 21

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
2021-03-24	779-904	0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FREEPORT	IL
2021-03-24	813-859	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	ZEPHYRHILS	FL
2021-03-24	831-266	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	SANTA CRUZ	CA
2021-03-24	858-319	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	LA JOLLA	CA
2021-03-24	914-504	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	WSCHSTZN07	NY
2021-03-24	914-554	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PLEASANTVL	NY
2021-03-24	914-577	1XXX2XXX4XXX5XXX7XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CRTNONHDSN	NY
2021-03-24	930-901	1XXX2XXX8XXX9XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	JASPER	IN
2021-03-24	930-902	0XXX1XXX8XXX9XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SEYMOUR	IN
2021-03-24	934-214	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	W COMMACK	NY
2021-03-24	934-445	2XXX3XXX5XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PECONIC	NY
2021-03-24	934-884	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CTRMORICHS	NY
2021-03-24	979-340	0XXX3XXX4XXX6XXX7XXX · 3 holders which blocks →	TELNYX LLC	073H	LEXINGTON	TX
2021-03-23	276-253	0XXX1XXX2XXX8XXX9XXX · 2 holders which blocks →	TELNYX LLC	073H	RURALRTRET	VA
2021-03-23	431-393	not yet reported which blocks →	Bell Mobility	6574	Winnipeg	—
2021-03-23	437-514	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2021-03-23	438-592	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2021-03-23	475-447	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BYRAM	CT
2021-03-23	502-685	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	SHEPHEDSVL	KY
2021-03-23	561-647	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2021-03-23	640-266	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BURLINGTON	NJ
2021-03-23	681-369	0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	T-MOBILE USA, INC.	6529	MULLENS	WV
2021-03-23	681-374	0XXX1XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	TELNYX LLC	073H	BLUEWELL	WV
2021-03-23	743-901	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LEXINGTON	NC
2021-03-23	757-732	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	NWPTNWSZN2	VA
2021-03-23	757-786	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	NRFOLKZON4	VA
2021-03-23	813-776	0–9 XXXall 10 · 5 holders which blocks →	HD CARRIER LLC	321J	TAMPAWST	FL
2021-03-23	825-434	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2021-03-23	825-441	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2021-03-23	828-902	0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SYLVA	NC
2021-03-23	904-676	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	JACKSONVL	FL
2021-03-23	910-831	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	CLINTON	NC
2021-03-22	229-554	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - GA	067D	VALDOSTA	GA
2021-03-22	478-383	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MACON	GA
2021-03-22	564-207	1XXX2XXX which blocks →	NUSO, LLC	478J	TENINO	WA
2021-03-22	626-561	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ALHAMBRA	CA
2021-03-22	657-495	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ANAHEIM	CA
2021-03-22	715-970	0XXX1XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	NEWRICHMND	WI
2021-03-22	912-563	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	BRUNSWICK	GA
2021-03-22	912-581	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	SAVANNAH	GA
2021-03-22	912-589	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	STATESBORO	GA
2021-03-22	934-414	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BRENTWOOD	NY
2021-03-22	939-305	0–9 XXXwhole prefix which blocks →	PUERTO RICO TELCO DBA CLARO PUERTO RICO	4823	BAYAMONNOR	PR
2021-03-22	989-901	0XXX1XXX9XXX which blocks →	ONVOY SPECTRUM, LLC	624H	ALMA	MI
2021-03-19	213-552	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	MONTEBELLO	CA
2021-03-19	315-526	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	FAYETTEVL	NY
2021-03-19	318-760	0XXX1XXX6XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	COUSHATTA	LA
2021-03-19	332-246	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	NWYRCYZN01	NY
2021-03-19	346-481	0–9 XXXall 10 · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	RICHMNRNBG	TX
2021-03-19	352-778	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	OLD TOWN	FL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.