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
2016-03-17	639-245	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Regina	—
2016-03-17	639-246	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Regina	—
2016-03-17	639-247	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Regina	—
2016-03-17	639-248	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Regina	—
2016-03-17	639-249	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Regina	—
2016-03-17	646-608	0–9 XXXwhole prefix which blocks →	PAETEC ITEL, LLC	829J	NWYRCYZN01	NY
2016-03-17	647-910	not yet reported which blocks →	IXICA Communications Inc.	812H	Toronto	—
2016-03-17	708-677	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	CHICAGOHTS	IL
2016-03-17	831-318	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	APTOS	CA
2016-03-17	831-322	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - CA	649C	WATSONVL	CA
2016-03-17	901-623	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	MEMPHIS	TN
2016-03-17	936-247	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks →	ONVOY, LLC - TX	903C	SHEPHERD	TX
2016-03-17	937-957	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	PEERLESS NETWORK OF OHIO, LLC - OH	284F	RIPLEY	OH
2016-03-17	940-304	0–9 XXXall 10 · 8 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	DENTON	TX
2016-03-16	229-262	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - GA	067D	VALDOSTA	GA
2016-03-16	249-204	not yet reported which blocks →	Distributel	082E	Pefferlaw	—
2016-03-16	249-205	not yet reported which blocks →	Distributel	082E	Udora	—
2016-03-16	269-241	0–9 XXXall 10 · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	MIDDLEVL	MI
2016-03-16	315-817	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	SACKETSHBR	NY
2016-03-16	315-819	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	THERESA	NY
2016-03-16	317-766	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	INDIANAPLS	IN
2016-03-16	352-724	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - FL	937C	HOWEYINHLS	FL
2016-03-16	412-274	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - PA	547E	CLAIRTON	PA
2016-03-16	470-294	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA NE	GA
2016-03-16	478-200	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	MACON	GA
2016-03-16	478-347	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - GA	067D	WRIGHTSVL	GA
2016-03-16	619-314	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG SNDG	CA
2016-03-16	657-308	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SANTA ANA	CA
2016-03-16	657-309	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SANTA ANA	CA
2016-03-16	657-312	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	HUNTITNBCH	CA
2016-03-16	717-470	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - PA	547E	JONESTOWN	PA
2016-03-16	717-970	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - PA	547E	MYERSTOWN	PA
2016-03-16	720-419	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	DENVER	CO
2016-03-16	731-316	0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks →	ONVOY, LLC - TN	525E	LEXINGTON	TN
2016-03-16	772-301	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	PTST LUCIE	FL
2016-03-16	778-602	not yet reported which blocks →	Distributel	081E	Whonnock	—
2016-03-16	778-605	not yet reported which blocks →	Distributel	081E	Squamish	—
2016-03-16	778-606	not yet reported which blocks →	Distributel	081E	West Vancouver	—
2016-03-16	778-607	not yet reported which blocks →	Distributel	081E	Whalley	—
2016-03-16	778-609	not yet reported which blocks →	Distributel	081E	White Rock	—
2016-03-16	778-613	not yet reported which blocks →	Distributel	081E	Aldergrove	—
2016-03-16	778-614	not yet reported which blocks →	Distributel	081E	Boston Bar	—
2016-03-16	778-615	not yet reported which blocks →	Distributel	081E	Bowen Island	—
2016-03-16	778-616	not yet reported which blocks →	Distributel	081E	Britannia Beach	—
2016-03-16	778-617	not yet reported which blocks →	Distributel	081E	Cloverdale	—
2016-03-16	778-618	not yet reported which blocks →	Distributel	081E	Fort Langley	—
2016-03-16	778-619	not yet reported which blocks →	Distributel	081E	Haney	—
2016-03-16	778-620	not yet reported which blocks →	Distributel	081E	Ladner	—
2016-03-16	778-621	not yet reported which blocks →	Distributel	081E	Langley	—
2016-03-16	778-623	not yet reported which blocks →	Distributel	081E	New Westminster	—

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.