Data as of Nov 10, 2026

131.239.37.0/24

No anonymizer space · no proxy exits in 30 days

Michigan Central Innovation District, LLC · space held by Zayo Bandwidth

Announcement
this exact prefix
No RPKI
Announced by
Type
Residential
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
131.239.36.0/22
since Aug 2022
AS46887Internet provider1Zayo Bandwidth
131.239.0.0/16
since Nov 2021
AS46887Internet provider190
29 always on
Zayo Bandwidth

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
131.239.0.0/1665,536ZAYO-CCF-131-239-0-0Zayo Bandwidth (ZAYOB) · USDirect AllocationFeb 6, 1989abuse@zayo.com
└ 131.239.37.0/24256LTF-0-131-239-37-0-24Ford Motor Company (C08825199) · USReassignedAug 17, 2022abuse@zayo.com
via ZAYO-CCF-131-239-0-0

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

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Rotating
First seen
Sep 2008
Current origin since
Apr 2023 · 3.5 yr
Origin networks
3
Last change of origin
Apr 2023
Recorded history

History

Handoffs
2