ASN AS25657 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25657?

AS25657 is listed under Basecamp, 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.

AS25657 Basecamp, LLC | IPGeolocation.io

ASN Lookup Tool

Basecamp, LLC basecamp.com

US 3 Routes

AS Data

AS25657

AS25657 – Basecamp, LLC

AS Number	25657
AS Name	BASECAMP
Organization	Basecamp, LLC(sl-5)
Country	US
Website	basecamp.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2011-02-02

ASN Intelligence API for production workflows

Use ASN data for AS25657 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.62.114.0/24	AS25657	Basecamp, LLC	Basecamp, LLC	256
204.62.115.0/24	AS25657	Basecamp, LLC	Basecamp, LLC	256
64.202.125.0/24	AS25657	Basecamp, LLC	Basecamp, 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:       25657
ASName:         BASECAMP
ASHandle:       AS25657
RegDate:        2011-02-02
Updated:        2019-06-05    
Ref:            https://rdap.arin.net/registry/autnum/25657


OrgName:        Basecamp, LLC
OrgId:          SL-5
Address:        30 North Racine Avenue #200
City:           Chicago
StateProv:      IL
PostalCode:     60607
Country:        US
RegDate:        2011-01-06
Updated:        2019-06-05
Ref:            https://rdap.arin.net/registry/entity/SL-5


OrgAbuseHandle: OPERA630-ARIN
OrgAbuseName:   Operations
OrgAbusePhone:  +1-312-281-5333 
OrgAbuseEmail:  sysadmins+arin@basecamp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OPERA630-ARIN

OrgTechHandle: OPERA630-ARIN
OrgTechName:   Operations
OrgTechPhone:  +1-312-281-5333 
OrgTechEmail:  sysadmins+arin@basecamp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OPERA630-ARIN

OrgNOCHandle: OPERA630-ARIN
OrgNOCName:   Operations
OrgNOCPhone:  +1-312-281-5333 
OrgNOCEmail:  sysadmins+arin@basecamp.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/OPERA630-ARIN

RAbuseHandle: OPERA630-ARIN
RAbuseName:   Operations
RAbusePhone:  +1-312-281-5333 
RAbuseEmail:  sysadmins+arin@basecamp.com
RAbuseRef:    https://rdap.arin.net/registry/entity/OPERA630-ARIN

RTechHandle: OPERA630-ARIN
RTechName:   Operations
RTechPhone:  +1-312-281-5333 
RTechEmail:  sysadmins+arin@basecamp.com
RTechRef:    https://rdap.arin.net/registry/entity/OPERA630-ARIN

RNOCHandle: OPERA630-ARIN
RNOCName:   Operations
RNOCPhone:  +1-312-281-5333 
RNOCEmail:  sysadmins+arin@basecamp.com
RNOCRef:    https://rdap.arin.net/registry/entity/OPERA630-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
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS23352	DEFT.COM	US

Upstreams

AS Number	Description	Country
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS23352	DEFT.COM	US