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AS21965

HIGHMARK

Highmark Inc

Registry

Authoritative registration data

AS number
21965
Name
HIGHMARK
Organisation
Highmark Inc
Country
—
RIR
ARIN
Registered
Source:asn:rdap retrieved

IPv4 prefixes

22

IPv6 prefixes

0

Total announced

22

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS21965
157.154.11.0/24 IPv4 /24 RPKI not found
157.154.14.0/24 IPv4 /24 RPKI not found
157.154.20.0/24 IPv4 /24 RPKI not found
157.154.3.0/24 IPv4 /24 RPKI not found
157.154.4.0/24 IPv4 /24 not checked
157.154.5.0/24 IPv4 /24 not checked
157.154.6.0/24 IPv4 /24 RPKI not found
157.154.7.0/24 IPv4 /24 not checked
157.154.8.0/24 IPv4 /24 not checked
167.164.11.0/24 IPv4 /24 RPKI not found
167.164.14.0/24 IPv4 /24 RPKI not found
167.164.20.0/24 IPv4 /24 not checked
167.164.3.0/24 IPv4 /24 not checked
167.164.4.0/24 IPv4 /24 RPKI not found
167.164.5.0/24 IPv4 /24 RPKI not found
167.164.6.0/24 IPv4 /24 not checked
167.164.7.0/24 IPv4 /24 not checked
167.164.8.0/24 IPv4 /24 RPKI not found
192.152.123.0/24 IPv4 /24 RPKI not found
199.190.160.0/24 IPv4 /24 not checked
199.190.163.0/24 IPv4 /24 RPKI not found
199.190.164.0/24 IPv4 /24 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

No Internet Exchange memberships found

The exchange directory has no current membership records for this AS.

Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS21965 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

6 networks seen before AS21965 in AS paths

Observed upstreams
Families
AS6461 ZAYO-6461 446 4,710
v4
AS3356 LEVEL3 396 3,949
v4
AS15830 Equinix 293 1,823
v4
AS7018 ATT-INTERNET4 28 262
v4
AS46887 ZAYO-CCF-AS46887 141 177
v4
AS7016 CCCH-3 83 96
v4

No rows match “”.

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Observed downstreams

1 networks seen after AS21965 in AS paths

Observed downstreams
Families
AS22255 ALLEGHENYHEALTHNETWORK 457 4,959
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual.