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
2019-10-17	437-855	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-17	437-866	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-17	437-877	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-17	437-899	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-17	469-743	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	MIDLOTHIAN	TX
2019-10-17	647-566	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-17	816-362	1XXX7XXX8XXX · 3 holders which blocks →	FRACTEL, LLC	965H	LATHROP	MO
2019-10-17	816-639	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	ST JOSEPH	MO
2019-10-17	828-843	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NC	8389	ASHEVILLE	NC
2019-10-17	930-300	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	GALENA	IN
2019-10-17	930-336	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	PALMYRA	IN
2019-10-17	930-356	0XXX1XXX2XXX3XXX7XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	LYNNVILLE	IN
2019-10-17	930-465	0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	NEWHARMONY	IN
2019-10-17	930-500	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	CHARLESTN	IN
2019-10-17	930-600	0XXX1XXX3XXX6XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	CAMPBELSBG	IN
2019-10-17	930-758	0XXX1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks →	FRACTEL, LLC	965H	FRITCHTON	IN
2019-10-17	956-479	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BROWNSVL	TX
2019-10-16	213-390	not yet reported which blocks →	RIGHT CALL LLC	365J	LSAN DA 01	CA
2019-10-16	272-233	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - PA	547E	POCONOLAKE	PA
2019-10-16	272-234	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - PA	547E	TOWANDA	PA
2019-10-16	307-263	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	CHEYENNE	WY
2019-10-16	314-796	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	7218	CREVECOEUR	MO
2019-10-16	385-306	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	KAYSVILLE	UT
2019-10-16	437-338	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-558	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-668	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-881	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-882	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-883	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	437-885	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Toronto	—
2019-10-16	510-630	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ELSBR-PINL	CA
2019-10-16	647-482	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2019-10-16	647-613	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2019-10-16	737-262	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	AUSTIN	TX
2019-10-16	934-200	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	AMITYVILLE	NY
2019-10-16	936-289	2XXX3XXX6XXX7XXX9XXX · 2 holders which blocks →	ONVOY, LLC - TX	903C	APPLE SPG	TX
2019-10-16	936-292	1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - TX	903C	ETOILE	TX
2019-10-16	936-296	1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - TX	903C	WELLS	TX
2019-10-15	202-929	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN1	DC
2019-10-15	240-698	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	MYERSVILLE	MD
2019-10-15	260-600	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FORT WAYNE	IN
2019-10-15	272-232	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - PA	547E	DALTON	PA
2019-10-15	314-671	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KIRKWOOD	MO
2019-10-15	330-293	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	TWINSBURG	OH
2019-10-15	332-217	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN01	NY
2019-10-15	334-810	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - AL	604E	ALBERTA	AL
2019-10-15	365-607	not yet reported which blocks →	Iristel Inc.	154E	Fort Erie	—
2019-10-15	402-252	0–9 XXXall 10 · 6 holders which blocks →	AIRUS, INC. - NE	478H	VALENTINE	NE
2019-10-15	403-900	not yet reported which blocks →	IXICA Communications Inc.	812H	Calgary	—
2019-10-15	406-408	0XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT	6564	HAYS	MT

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.