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	Prefix	Description
	148.142.64.0/19	Midcontinent Independent System Operator, Inc.
	148.142.64.0/21	Midcontinent Independent System Operator, Inc.
	148.142.72.0/21	Midcontinent Independent System Operator, Inc.
	148.142.80.0/21	Midcontinent Independent System Operator, Inc.
	148.142.88.0/21	Midcontinent Independent System Operator, Inc.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS32787	Akamai (Prolexic)	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS46887	Crown Castle Fiber LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS32787	Akamai (Prolexic)	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS46887	Crown Castle Fiber LLC	✔	✘

ASHandle:       AS20004
OrgID:          MISO-2
ASName:         MISO
ASNumber:       20004
RegDate:        2001-03-13
Updated:        2012-03-02
Source:         ARIN



OrgID:          MISO-2
OrgName:        Midcontinent Independent System Operator, Inc.
CanAllocate:    
Street:         701 City Center Drive
City:           Carmel
State/Prov:     IN
Country:        US
PostalCode:     46032
RegDate:        1970-01-01
Updated:        2016-03-29
OrgAdminHandle: NETWO969-ARIN
OrgTechHandle:  NETWO969-ARIN
OrgAbuseHandle: NETWO969-ARIN
Source:         ARIN





OrgAdminHandle:       NETWO969-ARIN
OrgAdminName:          Network
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETWO969-ARIN
OrgTechName:           Network
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NETWO969-ARIN
OrgAbuseName:          Network
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-05-07T03:36:27Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-ccf	1529
RADB	as-telstra-testing-1	11846
RADB	as-ctbc-customers64	49
RADB	as-kddcustomer2	8206
RADB	as-telstra-intl-customers	12353
RADB	as-ccf-test	1461
RADB	as-prole	1185
LEVEL3	as-lumen-customers-asns	10695