AS4
ISI-AS
University of Southern California
Registry
Authoritative registration data
- AS number
- 4
- Name
- ISI-AS
- Organisation
- University of Southern California
- Country
- —
- RIR
- ARIN
- Registered
IPv4 prefixes
44
IPv6 prefixes
8
Total announced
52
Announced prefixes
Observed in BGP by route collectors, not a registry allocation list
| 128.9.192.0/18 | IPv4 | /18 | not checked | |
| 128.9.0.0/20 | IPv4 | /20 | not checked | |
| 128.9.112.0/20 | IPv4 | /20 | RPKI not found | |
| 128.9.128.0/20 | IPv4 | /20 | RPKI not found | |
| 128.9.144.0/20 | IPv4 | /20 | not checked | |
| 128.9.160.0/20 | IPv4 | /20 | not checked | |
| 128.9.176.0/20 | IPv4 | /20 | not checked | |
| 128.9.32.0/20 | IPv4 | /20 | not checked | |
| 128.9.48.0/20 | IPv4 | /20 | RPKI not found | |
| 128.9.64.0/20 | IPv4 | /20 | not checked | |
| 128.9.80.0/20 | IPv4 | /20 | not checked | |
| 128.9.96.0/20 | IPv4 | /20 | RPKI not found | |
| 128.9.28.0/23 | IPv4 | /23 | RPKI not found | |
| 170.79.218.0/23 | IPv4 | /23 | not checked | |
| 128.9.113.0/24 | IPv4 | /24 | not checked | |
| 128.9.117.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.122.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.123.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.127.0/24 | IPv4 | /24 | not checked | |
| 128.9.16.0/24 | IPv4 | /24 | not checked | |
| 128.9.17.0/24 | IPv4 | /24 | not checked | |
| 128.9.18.0/24 | IPv4 | /24 | not checked | |
| 128.9.19.0/24 | IPv4 | /24 | not checked | |
| 128.9.26.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.30.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.31.0/24 | IPv4 | /24 | not checked | |
| 128.9.34.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.35.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.36.0/24 | IPv4 | /24 | not checked | |
| 128.9.37.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.38.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.40.0/24 | IPv4 | /24 | not checked | |
| 128.9.43.0/24 | IPv4 | /24 | not checked | |
| 128.9.44.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.46.0/24 | IPv4 | /24 | RPKI not found | |
| 128.9.47.0/24 | IPv4 | /24 | RPKI not found | |
| 165.140.12.0/24 | IPv4 | /24 | not checked | |
| 165.140.13.0/24 | IPv4 | /24 | RPKI not found | |
| 165.140.14.0/24 | IPv4 | /24 | not checked | |
| 198.32.16.0/24 | IPv4 | /24 | RPKI not found | |
| 206.117.27.0/24 | IPv4 | /24 | RPKI not found | |
| 206.117.31.0/24 | IPv4 | /24 | RPKI not found | |
| 206.117.37.0/24 | IPv4 | /24 | RPKI not found | |
| 206.117.6.0/24 | IPv4 | /24 | not checked | |
| 2606:d5c0::/32 | IPv6 | /32 | not checked | |
| 2804:3edc::/32 | IPv6 | /32 | not checked | |
| 2001:1878:401::/48 | IPv6 | /48 | not checked | |
| 2001:1878:402::/48 | IPv6 | /48 | RPKI not found | |
| 2001:1878:403::/48 | IPv6 | /48 | RPKI not found | |
| 2001:1878:404::/48 | IPv6 | /48 | not checked | |
| 2001:500:202::/48 | IPv6 | /48 | RPKI valid | |
| 2606:d5c0::/48 | IPv6 | /48 | RPKI not found |
No rows match “”.
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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.
Exchange membership means the network has a listed connection; it does not prove peering with other members.
Observed adjacencies
Networks seen next to AS4 in BGP paths by route collectors.
Observed upstreams
10 networks seen before AS4 in AS paths
| Families | |||
|---|---|---|---|
| AS226 LOS-NETTOS-AS | 294 | 10,345 |
v4
v6
|
| AS567 ASN-LNET-AS | 334 | 3,578 |
v4
v6
|
| AS10886 MAX-GIGAPOP | 258 | 336 |
v4
|
| AS174 COGENT-174 | 247 | 328 |
v4
|
| AS266625 ASN266625 | 145 | 207 |
v6
|
| AS400215 SAMBANOVA | 24 | 77 |
v4
|
| AS266306 ASN266306 | 55 | 70 |
v4
|
| AS37358 ORG-BA10-AFRINIC | 28 | 46 |
v6
|
| AS30844 LIQUID-AS | 4 | 4 |
v4
|
| AS58821 IDNIC-LJN-AS-ID | 1 | 3 |
v4
|
No rows match “”.
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Observed downstreams
3 networks seen after AS4 in AS paths
| Families | |||
|---|---|---|---|
| AS328434 ORG-NL10-AFRINIC | 27 | 43 |
v6
|
| AS2635 AUTOMATTIC | 4 | 4 |
v4
|
| AS139451 ALFANET-AS-ID | 1 | 3 |
v4
|
No rows match “”.
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