"Comcast" may be monolithic, but it is composed of numerous "little" pieces. Please contact them and strenuously complain. I am on a Comcast supplied wire accessing the Athena.trixology domain as I write this. Comcast needs to get their act together. Period.
traceroute to athena.trixology.com (91.146.108.25), 64 hops max, 72 byte packets
1 10.0.1.1 (10.0.1.1) 0.853 ms 0.525 ms 0.507 ms
2 10.0.0.1 (10.0.0.1) 3.985 ms 2.245 ms 2.124 ms
3 96.120.34.129 (96.120.34.129) 14.962 ms 14.347 ms 19.944 ms
4 te7-4-ur01.collierville.tn.malt.comcast.net (69.139.224.153) 13.225 ms 12.624 ms 11.574 ms
5 be-41-ar02.dannythomas.tn.malt.comcast.net (68.85.203.21) 14.971 ms 14.362 ms 15.459 ms
6 be-22258-cr02.dallas.tx.ibone.comcast.net (68.86.93.93) 24.515 ms 30.192 ms 29.053 ms
7 50.242.148.30 (50.242.148.30) 858.259 ms 874.429 ms 579.979 ms
8 ae-115-3501.edge3.london15.level3.net (4.69.167.74) 129.928 ms 118.980 ms 119.979 ms
9 ae-115-3501.edge3.london15.level3.net (4.69.167.74) 116.683 ms 122.810 ms 231.031 ms
10 212.187.195.54 (212.187.195.54) 118.980 ms 118.098 ms 120.780 ms
11 uk.slo.ld5.201.r1.misp.co.uk (185.52.26.130) 119.189 ms 117.705 ms 119.766 ms
12 185.24.99.67 (185.24.99.67) 159.982 ms 149.836 ms 160.056 ms
13 unicron.3v0.net (91.146.108.25) 124.834 ms 218.834 ms 137.876 ms
WhatRoute has a terrific display! ThU5:-)
You can get the raw info from Network Utility->Traceroute, which seems to have been hidden in /System/Library/CoreServices/Applications/Network Utility.app, at least in macOS 10.12 Sierra. I have an alias stored in my Utilities directory, but why did Apple do that? [banghead]
Odysseus:~ elagache$ traceroute athena.trixology.com
traceroute to athena.trixology.com (91.146.108.25), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 0.751 ms 0.589 ms 0.488 ms
2 96.120.91.1 (96.120.91.1) 12.123 ms 9.559 ms 9.805 ms
3 be-20005-sur04.walnutcreek.ca.sfba.comcast.net (68.87.197.169) 11.137 ms 10.177 ms 9.935 ms
4 68.85.155.129 (68.85.155.129) 10.081 ms
hu-0-4-0-0-sur03.walnutcreek.ca.sfba.comcast.net (68.85.155.229) 9.470 ms 9.176 ms
5 be-225-rar01.pinole.ca.sfba.comcast.net (162.151.78.189) 10.769 ms 10.782 ms 10.303 ms
6 hu-0-1-0-2-ar01.santaclara.ca.sfba.comcast.net (68.85.154.41) 18.994 ms
hu-0-1-0-6-ar01.santaclara.ca.sfba.comcast.net (68.85.154.97) 12.250 ms
hu-0-1-0-2-ar01.santaclara.ca.sfba.comcast.net (68.85.154.41) 13.034 ms
7 * * *
8 ae-118-3504.edge3.london15.level3.net (4.69.167.86) 146.481 ms
ae-115-3501.edge3.london15.level3.net (4.69.167.74) 146.926 ms
ae-226-3602.edge3.london15.level3.net (4.69.167.94) 146.307 ms
9 ae-225-3601.edge3.london15.level3.net (4.69.167.90) 146.946 ms
ae-228-3604.edge3.london15.level3.net (4.69.167.102) 146.532 ms 150.449 ms
10 212.187.195.54 (212.187.195.54) 146.171 ms 161.686 ms 146.223 ms
11 uk.slo.ld5.201.r1.misp.co.uk (185.52.26.130) 147.942 ms 147.136 ms 148.239 ms
12 185.24.99.67 (185.24.99.67) 198.257 ms 165.722 ms 211.125 ms
13 unicron.3v0.net (91.146.108.25) 147.885 ms 147.796 ms 147.038 ms