Comcast:
Host Information
1, -------------- ,192.168.1.1
2, -------------- ,192.168.15.1
3,c-66-229-24-1.hsd1.fl.comcast.net,66.229.24.1
4,ge-1-16-ur01.miramar.fl.pompano.comcast.net,68.86.160.209
5,be-3-ar03.northdade.fl.pompano.comcast.net,68.86.164.89
6,pos-0-5-0-0-cr01.miami.fl.ibone.comcast.net,68.86.91.81
7,pos-2-2-0-0-cr01.atlanta.ga.ibone.comcast.net,68.86.86.66
8,pos-1-11-0-0-cr01.dallas.tx.ibone.comcast.net,68.86.85.221
9,Vlan549.icore2.DTX-Dallas.as6453.net,206.82.142.5
10,Vlan6.icore1.DTX-Dallas.as6453.net,209.58.47.13
11, -------------- ,192.205.35.57
12,cr1.dlstx.ip.att.net,12.122.139.106
13,gar23.dlstx.ip.att.net,12.122.139.153
14,12-122-254-154.attens.net,12.122.254.154
15,mdf001c7613r0003-gig-12-1.dal1.attens.net,63.241.193.22
16, -------------- ,206.16.60.41
Sample Information
"6/14/2009 12:08:16 AM",0,0,11,12,12,8,23,46,51,45,40,42,40,41,44,44
"6/14/2009 12:08:31 AM",0,0,7,5,6,7,21,42,48,*,41,40,41,41,43,42
"6/14/2009 12:08:46 AM",0,0,6,6,7,7,22,45,*,*,40,42,41,44,41,40
"6/14/2009 12:09:01 AM",0,0,8,10,10,7,25,44,*,*,40,40,40,51,46,40
"6/14/2009 12:09:16 AM",0,0,10,5,8,9,23,44,*,*,40,46,40,40,42,41
"6/14/2009 12:09:31 AM",0,1,5,5,6,10,24,42,51,56,41,40,40,41,40,41
"6/14/2009 12:09:46 AM",0,0,7,5,7,6,23,44,*,52,39,39,41,41,40,39
"6/14/2009 12:10:01 AM",0,0,7,6,8,7,22,42,*,*,42,41,120,42,41,41
"6/14/2009 12:10:16 AM",0,1,6,6,6,6,22,42,43,45,132,44,40,40,41,42
Mixed feelingsabout this, but it appears Level3 is still with some sections of the Comcast network.  Notice how hope #7 is screwed up?  That is Level3 in action.
 traceroute 66.229.24.1
traceroute to 66.229.24.1 (66.229.24.1), 30 hops max, 40 byte packets
 1  206.16.60.46 (206.16.60.46)  0.426 ms  0.347 ms  0.239 ms
 2  mdf001c7613r0002-gig-10-2.dal1.attens.net (63.241.193.17)  0.259 ms  0.275 ms  0.253 ms
 3  gar23.dlstx.ip.att.net (12.122.254.153)  1.248 ms  1.292 ms  1.038 ms
 4  cr2.dlstx.ip.att.net (12.122.138.154)  1.884 ms  1.858 ms  1.336 ms
 5  ggr3.dlstx.ip.att.net (12.122.138.25)  1.147 ms  1.164 ms  1.121 ms
 6  192.205.35.142 (192.205.35.142)  1.400 ms  1.434 ms  1.408 ms
 7  vlan99.csw4.Dallas1.Level3.ne t (4.68.19.254)  9.495 ms vlan89.csw3.Dallas1.Level3.ne t (4.68.19.190)  5.768 ms vlan79.csw2.Dallas1.Level3.ne t (4.68.19.126)  1.810 ms
 8  ae-61-61.ebr1.Dallas1.Level3.net (4.69.136.121)  11.199 ms  5.983 ms  2.253 ms
 9  ae-2.ebr1.Miami1.Level3.net (4.69.140.134)  41.989 ms  32.307 ms  36.365 ms
10  ae-1-51.edge2.Miami1.Level3.net (4.69.138.70)  31.860 ms  32.232 ms  31.660 ms
11  COMCAST-IP.edge2.Miami1.Level3.net (4.79.98.2)  34.966 ms  35.205 ms  35.041 ms
12  po-1-ur01.miramar.fl.pompano.comcast.net (68.86.164.90)  34.994 ms  35.024 ms  34.707 ms
13  c-66-229-24-1.hsd1.fl.comcast.net (66.229.24.1)  35.881 ms  35.047 ms  36.476 ms