Data as of Nov 13, 2026

192.174.72.0/21

1 residential-proxy exit · 30 days

Kiewit Corporation

Announcement

this exact prefix

No RPKI

Announced by

AS55028

Type

Business

Residential-proxy exits

Proxy exits

0.05% of its addresses · 30 days

Spread

1 of 8

/24s with at least one exit

Providers

selling exits here

Oct 14, 2026 – Nov 12, 2026

Exits seen per day

1 observation

Proxy providers listing exits

AnyIP

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Proxy exits	Holder
192.174.72.0/23 since Feb 2017	AS55028	Business	1	Kiewit Corporation
192.174.74.0/24 since Nov 2018	AS55028	Business		Kiewit Corporation
192.174.75.0/24 since Feb 2017	AS55028	Business		Kiewit Corporation
192.174.76.0/24 since Nov 2018	AS55028	Business		Kiewit Corporation
192.174.78.0/24 since Feb 2017	AS55028	Business		Kiewit Corporation

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Stable
First seen: Sep 2013
Current origin since: Sep 2013 · 13 yr
Origin networks: 2
Last change of origin: Feb 2017

Recorded history

History

Handoffs: 1

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS55028	ARIN	Kiewit Corp IPv4 Block	MNT-KC-81	Apr 17, 2020

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
192.174.79.0/24	AS55028	ARIN	Kiewit Corp IPv4 KPN Backbone	MNT-KC-81	Apr 17, 2020