Skip to main content
Autonomous System

AS55028

Kiewit Corporation

Announced IPs
2,048
CIDR prefixes
1
ASN
AS55028

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Enterprise
Geographic scope North America
Traffic ratio Balanced
Peering policy Restrictive

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
192.174.72.0/21 2.0K
2.6%
Kiewit Corporation US Kansas Lenexa

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS55028 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.174.72.0/23 3,760 2026-07-28 20:47:10
192.174.78.0/24 3,759 2026-07-28 20:47:10
192.174.74.0/24 3,686 2026-07-28 20:47:03
192.174.76.0/24 3,599 2026-07-28 20:47:10
192.174.72.0/21 3,587 2026-07-28 20:47:03
192.174.75.0/24 3,578 2026-07-28 20:47:10

Frequently Asked Questions

What is AS55028?

AS55028 is an Autonomous System Number assigned to Kiewit Corporation. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS55028 announce?

AS55028 announces 2.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS55028?

AS55028 is operated by Kiewit Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS55028 registered in?

AS55028 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-28 20:55:30 UTC
Share