What is ASN AS397773?

ASN AS397773 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397773?

AS397773 is listed under ENSCO, Inc..

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.

AS397773 ENSCO, Inc. | IPGeolocation.io

ASN Lookup Tool

ENSCO, Inc. ensco.com

US 1 Routes

AS Data

AS397773

AS397773 – ENSCO, Inc.

AS Number	397773
AS Name	ENSCO-INC
Organization	ENSCO, Inc.(enscoi-1)
Country	US
Website	ensco.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-07-25

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Use ASN data for AS397773 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.35.58.0/24	AS397773	ENSCO, Inc.	ENSCO, Inc.	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:       397773
ASName:         ENSCO-INC
ASHandle:       AS397773
RegDate:        2019-07-25
Updated:        2019-07-25    
Ref:            https://rdap.arin.net/registry/autnum/397773


OrgName:        ENSCO, Inc.
OrgId:          ENSCOI-1
Address:        5400 Port Royal Road
City:           Springfield
StateProv:      VA
PostalCode:     22151
Country:        US
RegDate:        1988-07-18
Updated:        2019-11-05
Ref:            https://rdap.arin.net/registry/entity/ENSCOI-1


OrgDNSHandle: EING1-ARIN
OrgDNSName:   ENSCO IST Network Group
OrgDNSPhone:  +1-321-775-7563 
OrgDNSEmail:  IST.ARIN.Registrations@ensco.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/EING1-ARIN

OrgNOCHandle: EING1-ARIN
OrgNOCName:   ENSCO IST Network Group
OrgNOCPhone:  +1-321-775-7563 
OrgNOCEmail:  IST.ARIN.Registrations@ensco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/EING1-ARIN

OrgRoutingHandle: EING1-ARIN
OrgRoutingName:   ENSCO IST Network Group
OrgRoutingPhone:  +1-321-775-7563 
OrgRoutingEmail:  IST.ARIN.Registrations@ensco.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/EING1-ARIN

OrgTechHandle: EING1-ARIN
OrgTechName:   ENSCO IST Network Group
OrgTechPhone:  +1-321-775-7563 
OrgTechEmail:  IST.ARIN.Registrations@ensco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/EING1-ARIN

OrgAbuseHandle: EING1-ARIN
OrgAbuseName:   ENSCO IST Network Group
OrgAbusePhone:  +1-321-775-7563 
OrgAbuseEmail:  IST.ARIN.Registrations@ensco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/EING1-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
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US