Data as of Nov 8, 2026

216.123.0.0/17

No anonymizer space · no proxy exits in 30 days

Zayo Bandwidth

Announcement

this exact prefix

RPKI valid

Announced by

Type

Internet provider

96% of it

Announcements

More specific

Prefix	Origin	Type	Holder
216.123.5.0/24 since Sep 2020	AS7385	Business	Zayo Bandwidth
216.123.71.0/24 since Oct 2021	AS15290	Internet provider	Zayo Bandwidth
216.123.100.0/24 since Oct 2024	AS19158	Unknown	Zayo Bandwidth
216.123.107.0/24 since Jun 2024	AS29731	Business	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
216.123.0.0 - 216.123.191.255	49,152	ZAYO-CAN-13	Zayo Bandwidth (ZAYOB) · US	Direct Allocation	Nov 20, 1998	abuse@zayo.com
└ 216.123.0.8/29	8	NET-0-216-123-0-8-29	unknown	—	—	—
└ 216.123.1.84/30	4	NET-0-216-123-1-84-30	unknown	—	—	—
└ 216.123.3.128/26	64	MICROSOFT-CORPORATION-STORE73B	unknown	—	—	—
└ 216.123.4.96/28	16	NET-216-123-4-96-28	unknown	—	—	—
└ 216.123.4.200/29	8	NET-216-123-4-200-29	unknown	—	—	—
└ 216.123.7.76/30	4	NET-216-123-7-76-30	unknown	—	—	—
└ 216.123.7.208/30	4	NET-216-123-7-208-30	unknown	—	—	—
└ 216.123.12.208/29	8	NET-216-123-12-208-29	unknown	—	—	—
└ 216.123.65.104/29	8	NET-0-216-123-65-104-29	unknown	—	—	—
└ 216.123.65.224/27	32	ZAYO-216-123-65-224-27	unknown	—	—	—
└ 216.123.67.0/24	256	ITCI-ALLSTRM1	unknown	—	—	—
└ 216.123.81.16/29	8	NET-216-123-81-16-29	unknown	—	—	—
└ 216.123.81.56/29	8	NET-0-216-123-81-56-29	unknown	—	—	—
└ 216.123.81.192/29	8	NET-216-123-81-192-29	unknown	—	—	—
└ 216.123.83.80/29	8	NET-0-216-123-83-80-29	unknown	—	—	—
└ 216.123.100.0/24	256	NET-216-123-100-0-24	Mordor Forging Test Account (C10968649) · CA	Reassigned	Sep 25, 2024	abuse@zayo.com via ZAYO-CAN-13
└ 216.123.102.0/24	256	NET-216-123-102-0-24	unknown	—	—	—
└ 216.123.107.0/24	256	NET-216-123-107-0-24	Tangerine (MPLS) (C10598043) · CA	Reassigned	Dec 29, 2023	abuse@zayo.com via ZAYO-CAN-13
└ 216.123.108.0/24	256	MUSKOKACOM	unknown	—	—	—
└ 216.123.109.204/30	4	NET-216-123-109-204-30	unknown	—	—	—

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

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

Announced space

Announced space

32,768 addresses

Type	Addresses	Share	Ranges
Internet provider	31,424	96%	7
Business	1,088	3.3%	5
Unknown	256	0.78%	1

Origin network