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
2016-12-05	845-404	0XXX1XXX8XXX9XXX · 2 holders which blocks →	TELNYX LLC	073H	POUGHKEPSI	NY
2016-12-05	856-250	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	CAMDEN	NJ
2016-12-05	902-709	not yet reported which blocks →	Iristel Inc.	154E	Shelburne	—
2016-12-05	910-530	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	WILMINGTON	NC
2016-12-05	912-250	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	SAVANNAH	GA
2016-12-05	980-273	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	CHARLOTTE	NC
2016-12-05	984-218	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	RALEIGH	NC
2016-12-02	236-863	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2016-12-02	236-865	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2016-12-02	236-869	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2016-12-02	339-240	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	BURLINGTON	MA
2016-12-02	346-406	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	HOUSTON	TX
2016-12-02	401-317	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	GREENWICH	RI
2016-12-02	423-690	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	MORRISTOWN	TN
2016-12-02	442-212	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	PALM SPG	CA
2016-12-02	469-577	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	DALLAS	TX
2016-12-02	629-216	0–9 XXXall 10 · 6 holders which blocks →	TELNYX LLC	073H	NASHVILLE	TN
2016-12-02	667-402	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	BALTIMORE	MD
2016-12-02	737-402	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	AUSTIN	TX
2016-12-02	757-782	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	NWPTNWSZN1	VA
2016-12-02	778-745	not yet reported which blocks →	Iristel Inc.	154E	Fernie	—
2016-12-02	802-200	0–9 XXXall 10 · 3 holders which blocks →	NORTHFIELD TEL. CO.	0061	NORTHFIELD	VT
2016-12-02	813-538	0–9 XXXall 10 · 3 holders which blocks →	TELNYX LLC	073H	TAMPACEN	FL
2016-12-02	830-402	0–9 XXXall 10 · 4 holders which blocks →	TELNYX LLC	073H	NEWBRANFLS	TX
2016-12-02	901-633	0–9 XXXall 10 · 2 holders which blocks →	TELNYX LLC	073H	MEMPHIS	TN
2016-12-02	901-708	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	MEMPHIS	TN
2016-12-01	541-675	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC - OR	750E	MADRAS	OR
2016-12-01	559-290	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	FRESNO	CA
2016-12-01	619-830	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	CHULAVISTA	CA
2016-12-01	628-213	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	SNFC CNTRL	CA
2016-12-01	951-441	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	ARLINGTON	CA
2016-11-30	207-401	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BANGOR	ME
2016-11-30	248-900	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLCV - MI	543C	ORTONVILLE	MI
2016-11-30	269-259	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NILES	MI
2016-11-30	385-266	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	SALT LAKE	UT
2016-11-30	385-425	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - UT	871E	MURRAY	UT
2016-11-30	425-382	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	EVERETT	WA
2016-11-30	709-209	not yet reported which blocks →	TELUS Integrated Communications	2782	Torbay	—
2016-11-30	778-576	not yet reported which blocks →	TELUS	8086	Fort St. John	—
2016-11-30	778-635	not yet reported which blocks →	TELUS	8086	Invermere	—
2016-11-30	778-659	not yet reported which blocks →	TELUS	8086	Kitimat	—
2016-11-30	778-661	not yet reported which blocks →	TELUS	8086	Merritt	—
2016-11-30	778-671	not yet reported which blocks →	TELUS	8086	Nelson	—
2016-11-30	929-390	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN07	NY
2016-11-30	929-401	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN08	NY
2016-11-30	929-402	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN09	NY
2016-11-30	929-403	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN10	NY
2016-11-30	929-404	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN11	NY
2016-11-30	929-405	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN12	NY
2016-11-30	929-406	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN13	NY

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.