can't route to rubygems?

traceroute.txt

$ traceroute rubygems.org
traceroute: Warning: rubygems.org has multiple addresses; using 151.101.192.70
traceroute to rubygems.org (151.101.192.70), 64 hops max, 52 byte packets
 1  10.0.0.1 (10.0.0.1)  69.025 ms  55.048 ms  24.030 ms
 2  96.120.91.9 (96.120.91.9)  42.344 ms  16.853 ms  19.971 ms
 3  be-10028-rur01.santaclara.ca.sfba.comcast.net (68.85.216.97)  82.559 ms  16.514 ms  57.404 ms
 4  162.151.78.253 (162.151.78.253)  22.618 ms  33.143 ms  13.133 ms
 5  be-3651-cr02.sunnyvale.ca.ibone.comcast.net (68.86.91.73)  19.991 ms  16.767 ms  17.342 ms
 6  be-11025-cr01.9greatoaks.ca.ibone.comcast.net (68.86.87.158)  40.005 ms  54.673 ms  32.714 ms
 7  hu-0-13-0-0-pe03.11greatoaks.ca.ibone.comcast.net (68.86.83.134)  39.771 ms  30.620 ms  38.479 ms
 8  * * *
 9  * * *
10  * * *
...
64  * * *

very similar failure for me too:

$ traceroute rubygems.org
traceroute: Warning: rubygems.org has multiple addresses; using 151.101.64.70
traceroute to rubygems.org (151.101.64.70), 64 hops max, 52 byte packets
 1  apdcfb0229c99e (192.168.11.1)  3.380 ms  2.522 ms  0.752 ms
 2  192.168.1.254 (192.168.1.254)  1.740 ms  1.662 ms  1.488 ms
 3  172-4-88-1.lightspeed.sntcca.sbcglobal.net (172.4.88.1)  22.878 ms  26.357 ms  24.866 ms
 4  71.148.149.26 (71.148.149.26)  23.241 ms  24.784 ms  20.555 ms
 5  71.145.0.252 (71.145.0.252)  23.767 ms  22.841 ms *
 6  12.83.39.193 (12.83.39.193)  23.219 ms
    12.83.39.197 (12.83.39.197)  30.150 ms  20.847 ms
 7  12.122.114.5 (12.122.114.5)  22.941 ms  24.291 ms  28.498 ms
 8  192.205.32.214 (192.205.32.214)  24.039 ms  44.644 ms  23.614 ms
 9  be-12578-cr01.9greatoaks.ca.ibone.comcast.net (68.86.88.17)  27.069 ms  24.826 ms  25.682 ms
10  be-12544-pe01.9greatoaks.ca.ibone.comcast.net (68.86.87.150)  23.618 ms  23.836 ms  23.625 ms
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  *^C