Data as of Nov 7, 2026

66.37.40.0/23

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

Internet provider

Risk

0 / 100 · Low

Announcements

Less specific

Prefix	Origin	Type	Proxy exits	Holder	RPKI
66.37.32.0/20 since Nov 2013	AS46887	Internet provider	1	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
66.37.32.0/20	4,096	ZAYO-CCF-66-37-32-0	Zayo Bandwidth (ZAYOB) · US	Direct Allocation	Oct 24, 2013	abuse@zayo.com
└ 66.37.40.56/29	8	LTF--66-37-40-56-29	unknown	—	—	—
└ 66.37.40.64/27	32	NET-66-37-40-64-27	unknown	—	—	—
└ 66.37.40.128/26	64	NET-LT-751-66-37-40-128-26	unknown	—	—	—
└ 66.37.41.0/25	128	LTF--66-37-41-0-25	unknown	—	—	—
└ 66.37.41.128/29	8	NET-66-37-41-128-29	unknown	—	—	—
└ 66.37.41.184/29	8	LTF--66-37-41-184-29	unknown	—	—	—
└ 66.37.41.192/27	32	NET-66-37-41-192-27	unknown	—	—	—

Origin network