What is ASN AS399981?

ASN AS399981 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399981?

AS399981 is listed under CRST THE TRANSPORTATION SOLUTION.

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.

AS399981 CRST THE TRANSPORTATION SOLUTION

ASN Lookup Tool

CRST THE TRANSPORTATION SOLUTION crst.com

US 1 Routes

AS Data

AS399981

AS399981 – CRST THE TRANSPORTATION SOLUTION

AS Number	399981
AS Name	CRST-THE-TRANSPORTATION-SOLUTION
Organization	CRST THE TRANSPORTATION SOLUTION(ce-1289)
Country	US
Website	crst.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2021-08-24

ASN Intelligence API for production workflows

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
208.99.58.0/24	AS399981	CRST THE TRANSPORTATION SOLUTION	CRST THE TRANSPORTATION SOLUTION	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:       399981
ASName:         CRST-THE-TRANSPORTATION-SOLUTION
ASHandle:       AS399981
RegDate:        2021-08-24
Updated:        2021-08-24    
Ref:            https://rdap.arin.net/registry/autnum/399981


OrgName:        CRST THE TRANSPORTATION SOLUTION
OrgId:          CE-1289
Address:        3930 16th Ave SW
City:           Cedar Rapids
StateProv:      IA
PostalCode:     52405
Country:        US
RegDate:        2021-08-16
Updated:        2025-12-23
Comment:        https://crst.com/
Ref:            https://rdap.arin.net/registry/entity/CE-1289


OrgNOCHandle: IPADM935-ARIN
OrgNOCName:   IP ADMIN
OrgNOCPhone:  +1-319-739-4944 
OrgNOCEmail:  infrastructure@crst.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IPADM935-ARIN

OrgDNSHandle: IPADM935-ARIN
OrgDNSName:   IP ADMIN
OrgDNSPhone:  +1-319-739-4944 
OrgDNSEmail:  infrastructure@crst.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/IPADM935-ARIN

OrgAbuseHandle: IPADM935-ARIN
OrgAbuseName:   IP ADMIN
OrgAbusePhone:  +1-319-739-4944 
OrgAbuseEmail:  infrastructure@crst.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IPADM935-ARIN

OrgTechHandle: KUEHN26-ARIN
OrgTechName:   Kuehn, Jeff 
OrgTechPhone:  +1-319-739-5790 
OrgTechEmail:  jeff.kuehn@crst.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KUEHN26-ARIN

OrgRoutingHandle: IPADM935-ARIN
OrgRoutingName:   IP ADMIN
OrgRoutingPhone:  +1-319-739-4944 
OrgRoutingEmail:  infrastructure@crst.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IPADM935-ARIN

OrgTechHandle: IPADM935-ARIN
OrgTechName:   IP ADMIN
OrgTechPhone:  +1-319-739-4944 
OrgTechEmail:  infrastructure@crst.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM935-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
AS6461	Zayo Bandwidth	US
AS394968	Quality Technology Services, LLC	US

Upstreams

AS Number	Description	Country
AS6461	Zayo Bandwidth	US
AS394968	Quality Technology Services, LLC	US