ASN Lookup Tool

Midcontinent Independent System Operator, Inc. misoenergy.org US US 5 Routes

AS Data

AS20004

AS20004 – Midcontinent Independent System Operator, Inc.

AS Number 20004
AS Name MISO
Organization Midcontinent Independent System Operator, Inc.(miso-2)
Country US
Website misoenergy.org
Number of IPv4 Routes 5
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2001-03-13

ASN Intelligence API for production workflows

Use ASN data for AS20004 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 # IPs
148.142.80.0/21 2048
148.142.64.0/19 8192
148.142.64.0/21 2048
148.142.72.0/21 2048
148.142.88.0/21 2048

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:       20004
ASName:         MISO
ASHandle:       AS20004
RegDate:        2001-03-13
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/20004


OrgName:        Midcontinent Independent System Operator, Inc.
OrgId:          MISO-2
Address:        701 City Center Drive
City:           Carmel
StateProv:      IN
PostalCode:     46032
Country:        US
RegDate:        
Updated:        2016-03-29
Ref:            https://rdap.arin.net/registry/entity/MISO-2


OrgAbuseHandle: NETWO969-ARIN
OrgAbuseName:   Network
OrgAbusePhone:  +1-317-249-5555 
OrgAbuseEmail:  networking@misoenergy.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO969-ARIN

OrgTechHandle: NETWO969-ARIN
OrgTechName:   Network
OrgTechPhone:  +1-317-249-5555 
OrgTechEmail:  networking@misoenergy.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO969-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
AS46887 Crown Castle Fiber LLC US
AS3549 Level 3 Communications, Inc. (GBLX) US
AS3356 Level 3 Parent, LLC US
AS32787 Akamai Technologies, Inc. US

Upstreams

AS Number Description Country
AS46887 Crown Castle Fiber LLC US
AS3356 Level 3 Parent, LLC US
AS32787 Akamai Technologies, Inc. US

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS20004 is an Autonomous System Number used to identify a network for BGP internet routing.
AS20004 is listed under Midcontinent Independent System Operator, Inc..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.