ASN AS55028 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS55028?

AS55028 is listed under Kiewit Corporation.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS55028 Kiewit Corporation | IPGeolocation.io

ASN Lookup Tool

Kiewit Corporation kiewit.com

US 8 Routes

AS Data

AS55028

AS55028 – Kiewit Corporation

AS Number	55028
AS Name	KIEWIT-US
Organization	Kiewit Corporation(kc-81)
Country	US
Website	kiewit.com
Number of IPv4 Routes	6
Number of IPv6 Routes	2
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2013-02-20

ASN Intelligence API for production workflows

Use ASN data for AS55028 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.174.72.0/23	AS55028	Kiewit Corporation	Kiewit Corporation	512
192.174.72.0/21	AS55028	Kiewit Corporation	Kiewit Corporation	2048
192.174.75.0/24	AS55028	Kiewit Corporation	Kiewit Corporation	256
2620:1fc::/36	AS55028	Kiewit Corporation	Kiewit Corporation	~5×10²⁷
192.174.78.0/24	AS55028	Kiewit Corporation	Kiewit Corporation	256
2620:1fc:1::/48	AS55028	Kiewit Corporation	Kiewit Corporation	~1×10²⁴
192.174.76.0/24	AS55028	Kiewit Corporation	Kiewit Corporation	256
192.174.74.0/24	AS55028	Kiewit Corporation	Kiewit Corporation	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       55028
ASName:         KIEWIT-US
ASHandle:       AS55028
RegDate:        2013-02-20
Updated:        2013-02-20
Comment:        www.kiewit.com    
Ref:            https://rdap.arin.net/registry/autnum/55028


OrgName:        Kiewit Corporation
OrgId:          KC-81
Address:        1550 Mike Fahey St
City:           Omaha
StateProv:      NE
PostalCode:     68102
Country:        US
RegDate:        2013-01-02
Updated:        2023-11-20
Ref:            https://rdap.arin.net/registry/entity/KC-81


OrgAbuseHandle: NETWO6157-ARIN
OrgAbuseName:   NetworkContact
OrgAbusePhone:  +1-877-772-7707 
OrgAbuseEmail:  NetworkContact@Kiewit.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO6157-ARIN

OrgNOCHandle: NETWO6157-ARIN
OrgNOCName:   NetworkContact
OrgNOCPhone:  +1-877-772-7707 
OrgNOCEmail:  NetworkContact@Kiewit.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO6157-ARIN

OrgTechHandle: NETWO6157-ARIN
OrgTechName:   NetworkContact
OrgTechPhone:  +1-877-772-7707 
OrgTechEmail:  NetworkContact@Kiewit.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO6157-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US