Data as of Nov 9, 2026

173.225.54.0/24

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

89% of it

Announcements

Less specific

Prefix	Origin	Type	Proxy exits	Holder	RPKI
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
└ 173.225.54.0/29	8	QIAGEN	unknown	—	—	—
└ 173.225.54.8/29	8	FIBERTECH-NETWORKS	unknown	—	—	—
└ 173.225.54.16/30	4	WESTAT	unknown	—	—	—
└ 173.225.54.20/30	4	FISHER-BIO-SERVICES-INC	unknown	—	—	—
└ 173.225.54.24/30	4	BOLAND	unknown	—	—	—
└ 173.225.54.28/30	4	DRFIRST	unknown	—	—	—
└ 173.225.54.32/27	32	AERAS	unknown	—	—	—
└ 173.225.54.64/26	64	FISHER-BIO-SERVICES-INC	unknown	—	—	—
└ 173.225.54.128/28	16	NOVAVAX-INC	unknown	—	—	—
└ 173.225.54.144/28	16	NOVAVAX-INC	unknown	—	—	—
└ 173.225.54.160/27	32	BOLAND	unknown	—	—	—
└ 173.225.54.192/30	4	GOLD-LASSO-INC	unknown	—	—	—
└ 173.225.54.196/31	2	ADVENTIST-HEALTHCARE	unknown	—	—	—
└ 173.225.54.198/31	2	HELEN-OF-TROY	unknown	—	—	—
└ 173.225.54.200/29	8	FIBERTECH-TURNUP-RKVL	unknown	—	—	—
└ 173.225.54.208/31	2	ADVENTIST-HEALTHCARE-2	unknown	—	—	—
└ 173.225.54.210/31	2	SIGMA-ALDRICH-CO	unknown	—	—	—
└ 173.225.54.224/28	16	SIGMA-ALDRICH-CO-2	unknown	—	—	—

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

Announced space

Announced space

256 addresses

Type	Addresses	Share	Ranges
Business	228	89%	18
Internet provider	28	11%	2

Origin network