What is ASN AS399145?

ASN AS399145 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399145?

AS399145 is listed under Sumo Capital LLC.

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.

AS399145 Sumo Capital LLC | IPGeolocation.io

ASN Lookup Tool

Sumo Capital LLC sumo.co

US 5 Routes

AS Data

AS399145

AS399145 – Sumo Capital LLC

AS Number	399145
AS Name	SUMO-SC
Organization	Sumo Capital LLC(scl-520)
Country	US
Website	sumo.co
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2020-12-29

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Use ASN data for AS399145 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.13.18.0/23	AS399145	Sumo Capital LLC	Sumo Capital LLC	512
140.174.19.128/25	AS399145	Sumo Capital LLC	NTT America, Inc.	128
140.174.19.0/25	AS399145	Sumo Capital LLC	NTT America, Inc.	128
140.174.19.0/24	AS399145	Sumo Capital LLC	NTT America, Inc.	256
198.13.18.0/24	AS399145	Sumo Capital LLC	Sumo Capital LLC	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:       399145
ASName:         SUMO-SC
ASHandle:       AS399145
RegDate:        2020-12-29
Updated:        2020-12-29    
Ref:            https://rdap.arin.net/registry/autnum/399145


OrgName:        Sumo Capital LLC
OrgId:          SCL-520
Address:        190 South LaSalle Street
Address:        Suite 1620
City:           Chicago
StateProv:      IL
PostalCode:     60603
Country:        US
RegDate:        2020-12-22
Updated:        2024-12-02
Ref:            https://rdap.arin.net/registry/entity/SCL-520


OrgTechHandle: TECHT26-ARIN
OrgTechName:   Tech-Team
OrgTechPhone:  +1-312-651-6215 
OrgTechEmail:  tech@sumo.co
OrgTechRef:    https://rdap.arin.net/registry/entity/TECHT26-ARIN

OrgNOCHandle: LINGF3-ARIN
OrgNOCName:   Ling, Fred 
OrgNOCPhone:  +1-312-651-6215 
OrgNOCEmail:  fred@sumocap.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/LINGF3-ARIN

OrgAbuseHandle: LINGF3-ARIN
OrgAbuseName:   Ling, Fred 
OrgAbusePhone:  +1-312-651-6215 
OrgAbuseEmail:  fred@sumocap.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LINGF3-ARIN

OrgRoutingHandle: LINGF3-ARIN
OrgRoutingName:   Ling, Fred 
OrgRoutingPhone:  +1-312-651-6215 
OrgRoutingEmail:  fred@sumocap.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/LINGF3-ARIN

OrgTechHandle: LINGF3-ARIN
OrgTechName:   Ling, Fred 
OrgTechPhone:  +1-312-651-6215 
OrgTechEmail:  fred@sumocap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LINGF3-ARIN

OrgDNSHandle: LINGF3-ARIN
OrgDNSName:   Ling, Fred 
OrgDNSPhone:  +1-312-651-6215 
OrgDNSEmail:  fred@sumocap.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/LINGF3-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
AS1239	Cogent Communications, LLC	US
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US