PeerFinder is a python script which finds common points of presence between ASNs as reported by PeeringDB.
The tool takes a mandatory arguments: --asn. There are two optional arguments to control output: --ix-only and --private-only.
$ python peerfinder.py --asn 2603 13414 --ix-only
Fetching PeeringDB info for 2603
Fetching PeeringDB info for 13414
+------------------------------------+-----------------------------+-----------------------------+
| IX | Twitter, Inc. | NORDUnet |
+------------------------------------+-----------------------------+-----------------------------+
| AMS-IX | AS: 13414 | AS: 2603 |
| | v4: 80.249.210.46 | v4: 80.249.209.203 |
| | v6: 2001:7f8:1::a501:3414:2 | v6: 2001:7f8:1::a500:2603:1 |
| | v4: 80.249.210.46 | |
| | v6: 2001:7f8:1::a501:3414:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| DE-CIX Frankfurt: Main | AS: 13414 | AS: 2603 |
| | v4: 80.81.194.21 | v4: 80.81.192.241 |
| | v6: 2001:7f8::3466:0:2 | v6: 2001:7f8::a2b:0:1 |
| | v4: 80.81.194.21 | |
| | v6: 2001:7f8::3466:0:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| Equinix Ashburn | AS: 13414 | AS: 2603 |
| | v4: 206.126.236.97 | v4: 206.126.236.230 |
| | v6: 2001:504:0:2:0:1:3414:2 | v6: 2001:504:0:2::2603:1 |
| | v4: 206.126.236.97 | |
| | v6: 2001:504:0:2:0:1:3414:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| Equinix Chicago | AS: 13414 | AS: 2603 |
| | v4: 206.223.119.231 | v4: 206.223.119.151 |
| | v6: 2001:504:0:4:0:1:3414:2 | v6: 2001:504:0:4::2603:1 |
| | v4: 206.223.119.231 | |
| | v6: 2001:504:0:4:0:1:3414:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| Equinix Palo Alto | AS: 13414 | AS: 2603 |
| | v4: 198.32.176.124 | v4: 198.32.176.208 |
| | v6: 2001:504:d::8b | v6: 2001:504:d::2603:1 |
| | v4: 198.32.176.124 | |
| | v6: 2001:504:d::8b | |
+------------------------------------+-----------------------------+-----------------------------+
| HKIX | AS: 13414 | AS: 2603 |
| | v4: 123.255.90.149 | v4: 123.255.91.213 |
| | v6: 2001:7fa:0:1::ca28:a095 | v6: None |
+------------------------------------+-----------------------------+-----------------------------+
| LINX LON1: Main | AS: 13414 | AS: 2603 |
| | v4: 195.66.226.61 | v4: 195.66.225.24 |
| | v6: 2001:7f8:4::3466:2 | v6: 2001:7f8:4::a2b:1 |
| | v4: 195.66.226.61 | |
| | v6: 2001:7f8:4::3466:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| NOTA | AS: 13414 | AS: 2603 |
| | v4: 198.32.125.114 | v4: 198.32.125.73 |
| | v6: 2001:478:124::1114 | v6: 2001:478:124::1073 |
| | v4: 198.32.125.114 | |
| | v6: 2001:478:124::1114 | |
+------------------------------------+-----------------------------+-----------------------------+
| NYIIX | AS: 13414 | AS: 2603 |
| | v4: 198.32.160.56 | v4: 198.32.160.21 |
| | v6: 2001:504:1::a501:3414:2 | v6: 2001:504:1::a500:2603:1 |
| | v4: 198.32.160.56 | |
| | v6: 2001:504:1::a501:3414:2 | |
+------------------------------------+-----------------------------+-----------------------------+
| Netnod Stockholm: STH-A -- MTU1500 | AS: 13414 | AS: 2603 |
| | v4: 194.68.123.229 | v4: 194.68.123.24 |
| | v6: 2001:7f8:d:ff::229 | v6: 2001:7f8:d:ff::24 |
+------------------------------------+-----------------------------+-----------------------------+
| Netnod Stockholm: STH-A -- MTU4470 | AS: 13414 | AS: 2603 |
| | v4: 195.245.240.229 | v4: 195.245.240.24 |
| | v6: 2001:7f8:d:fc::229 | v6: 2001:7f8:d:fc::24 |
+------------------------------------+-----------------------------+-----------------------------+
| Netnod Stockholm: STH-B -- MTU1500 | AS: 13414 | AS: 2603 |
| | v4: 194.68.128.229 | v4: 194.68.128.24 |
| | v6: 2001:7f8:d:fe::229 | v6: 2001:7f8:d:fe::24 |
+------------------------------------+-----------------------------+-----------------------------+
| Netnod Stockholm: STH-B -- MTU4470 | AS: 13414 | AS: 2603 |
| | v4: 195.69.119.229 | v4: 195.69.119.24 |
| | v6: 2001:7f8:d:fb::229 | v6: 2001:7f8:d:fb::24 |
+------------------------------------+-----------------------------+-----------------------------+
$ python peerfinder.py --asn 2603 13414 --private-only
Fetching PeeringDB info for 2603
Fetching PeeringDB info for 13414
+----------------------------------------------------+-----------+---------+
| Facility | City | Country |
+----------------------------------------------------+-----------+---------+
| Equinix Ashburn (DC1-DC11) | Ashburn | US |
+----------------------------------------------------+-----------+---------+
| Equinix Chicago (CH1/CH2/CH4) | Chicago | US |
+----------------------------------------------------+-----------+---------+
| Equinix London Docklands (LD8) | London | GB |
+----------------------------------------------------+-----------+---------+
| Equinix Palo Alto (SV8) | Palo Alto | US |
+----------------------------------------------------+-----------+---------+
| Interxion Stockholm (STO1, STO2, STO3, STO4, STO5) | Stockholm | SE |
+----------------------------------------------------+-----------+---------+
| Verizon Miami | Miami | US |
+----------------------------------------------------+-----------+---------+
Probably many. PRs or bug reports very welcome.
TODO: Make installable via pip