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ASN Lookup Tool
AS21965 HIGHMARK

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21965
Organisation
Highmark Inc
Name
HIGHMARK
Total IPv4 Addresses
5,632
Total IPv4 Prefixes
22
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#13,408 out of 79,045
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2001-07-19
Registration Last Change
2014-10-27
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS7018
US flagAT&T Enterprises, LLC
AS701
US flagVerizon Business
AS3356
US flagLevel 3 Parent, LLC
AS7016
US flagComcast Cable Communications, LLC
AS6461
US flagZayo Bandwidth
Showing 5 of 7
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS22255
US flagAllegheny Health Network
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix157.154.3.0/24
Range From157.154.3.0
Range To157.154.3.255
Prefix157.154.4.0/24
Range From157.154.4.0
Range To157.154.4.255
Prefix157.154.5.0/24
Range From157.154.5.0
Range To157.154.5.255
Prefix157.154.6.0/24
Range From157.154.6.0
Range To157.154.6.255
Prefix157.154.7.0/24
Range From157.154.7.0
Range To157.154.7.255
Showing 5 of 22