Data as of Nov 9, 2026

173.225.51.0/24

No anonymizer space · no proxy exits in 30 days

Crown Castle Fiber LLC · space held by Zayo Bandwidth

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

73% of it

Announcements

Less specific

Prefix	Origin	Type	Proxy exits	Holder	RPKI
173.225.48.0/22 since Nov 2021	AS46887	Internet provider	1	Zayo Bandwidth
173.225.48.0/20 since Oct 2025	AS46887	Internet provider	7	Zayo Bandwidth

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
173.225.48.0/20	4,096	ZAYO-CCF-173-225-48-0	Zayo Bandwidth (ZAYOB) · US	Direct Allocation	Jan 26, 2010	abuse@zayo.com
└ 173.225.51.0/26	64	CROWN-PLAZA-DANBURY	unknown	—	—	—
└ 173.225.51.64/27	32	CALL-BEFORE-YOU-DIG-INC	unknown	—	—	—
└ 173.225.51.96/28	16	DIOCESE-OF-BRIDGEPORT	unknown	—	—	—
└ 173.225.51.112/30	4	HINCKLEY-ALLEN-SNYDER	unknown	—	—	—
└ 173.225.51.116/30	4	NUTMEG-STATE-FEDERAL-CREDIT-UNION	unknown	—	—	—
└ 173.225.51.120/30	4	L-AND-M-HOSPITAL	unknown	—	—	—
└ 173.225.51.124/30	4	CT-BRACES	unknown	—	—	—
└ 173.225.51.128/28	16	CSC-COMPUTER-SCIENCE-US	unknown	—	—	—
└ 173.225.51.144/28	16	NUTMEG-STATE-FEDERAL-CREDIT-UNION	unknown	—	—	—
└ 173.225.51.160/27	32	HINCKLEY-ALLEN-SNYDER	unknown	—	—	—
└ 173.225.51.192/28	16	PLANNED-PARENTHOOD-PPSNE	unknown	—	—	—
└ 173.225.51.208/29	8	COMMUNITY-HEALTH-NETWORK-OF-CT-INC	unknown	—	—	—
└ 173.225.51.216/30	4	FSC-CT-LLC	unknown	—	—	—
└ 173.225.51.220/30	4	CUMULUS-BROADCASTING	unknown	—	—	—
└ 173.225.51.224/28	16	DR-RUSSO	unknown	—	—	—
└ 173.225.51.240/29	8	YALE-NEW-HAVEN-HEALTH-SYSTEMS	unknown	—	—	—
└ 173.225.51.248/30	4	CROWN-PLAZA-DANBURY	unknown	—	—	—
└ 173.225.51.252/30	4	FARM-CREDIT-FINANCIAL-PARTNERS-INC	unknown	—	—	—

The types across the prefix's announced space, by addresses.

Announced space

Announced space

256 addresses

Type	Addresses	Share	Ranges
Business	188	73%	16
Internet provider	68	27%	2

Origin network