[outages] AS37468 (Angola Cables) - Route Leak?

[Phil Lavin]

Return path is via NTT and looks OK:

                                        My traceroute  [v0.94]
http-lb-01 (88.99.88.69) -> 216.147.4.201                                     2023-05-25T12:34:28+0000
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                                              Packets               Pings
 Host                                                       Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. fe-fw-01.lavin.me.uk                                     0.0%    19    0.2   0.1   0.1   0.2   0.0
 2. 10.69.69.1                                               0.0%    18    0.3   0.2   0.2   0.3   0.0
 3. static.225.8.4.46.clients.your-server.de                 0.0%    18    0.5   0.8   0.4   5.3   1.1
 4. core23.fsn1.hetzner.com                                  0.0%    18    0.7   1.7   0.5   9.7   2.6
 5. core0.fra.hetzner.com                                    0.0%    18    5.2   5.1   5.1   5.2   0.0
 6. 213.198.82.129                                           0.0%    18    8.2   5.8   5.5   8.2   0.6
 7. ae-3.r20.frnkge13.de.bb.gin.ntt.net                      0.0%    18    5.5   8.5   5.2  48.7  10.1
 8. ae-4.r20.vienat02.at.bb.gin.ntt.net                      0.0%    18   22.0  18.1  16.6  22.0   1.7
 9. ae-0.r21.vienat02.at.bb.gin.ntt.net                      0.0%    18   26.8  21.8  17.1  29.9   3.4
10. ae-10.r23.sngpsi07.sg.bb.gin.ntt.net                    94.1%    18  162.1 162.1 162.1 162.1   0.0
11. ae-1.r00.sngpsi07.sg.bb.gin.ntt.net                      0.0%    18  156.9 157.1 156.9 157.2   0.1
12. ae-0.amazon.sngpsi07.sg.bb.gin.ntt.net                   0.0%    18  158.7 159.6 158.3 164.3   2.0
13. (waiting for reply)
14. (waiting for reply)
15. (waiting for reply)
16. (waiting for reply)
17. (waiting for reply)
18. (waiting for reply)
19. (waiting for reply)
20. (waiting for reply)
21. (waiting for reply)
22. (waiting for reply)
23. 216.147.4.201                                           70.6%    18  508.8 515.5 504.3 523.0   8.4