Comment by AlonsoGL

Here it goes: Behind a ISP-wide cache. Any 'traceroute' passes by transtelco.net (ISP used to have their own infraestructure for voip services Megafon) now i have 5/6? DNS jumps! and all my traffic going to Transtelco.

  traceroute to news.ycombinator.com (198.41.191.47), 30 hops max, 60 byte packets
  1  customer-GDL-**-***.megared.net.mx                 << 177.230.**.*** Dynamic IP, GDL is the city of the company
  2  10.0.28.62 (10.0.28.62)  8.939 ms  8.941 ms  8.935 ms
  3  10.2.28.195 (10.2.28.195)  8.912 ms  8.903 ms  8.891 ms
  4  pe-cob.megared.net.mx (189.199.117.***)  8.878 ms  8.866 ms  14.201 ms << COB is the user city
  5  10.3.0.29 (10.3.0.29)  23.494 ms  23.483 ms  23.408 ms
  6  10.3.0.13 (10.3.0.13)  22.842 ms  19.609 ms  19.596 ms
  7  10.3.0.10 (10.3.0.10)  19.560 ms  19.555 ms  19.536 ms
  8  201-174-24-233.transtelco.net (201.174.24.233)  19.527 ms  20.650 ms  19.468 ms
  9  201-174-254-105.transtelco.net (201.174.254.105)  34.239 ms  31.793 ms  31.268 ms
  10  fe3-5.br01.lax05.pccwbtn.net (63.218.73.25)  31.792 ms  31.736 ms  33.533 ms
  11  any2ix.coresite.com (206.223.143.150)  32.834 ms  33.221 ms  33.429 ms
  12  ae3-50g.cr1.lax1.us.nlayer.net (69.31.124.113)  41.288 ms  41.228 ms  41.231 ms
  13  ae2-50g.ar1.lax1.us.nlayer.net (69.31.127.142)  42.632 ms ae1-50g.ar1.lax1.us.nlayer.net (69.31.127.138)  35.192 ms 33.860 ms
  14  as13335.xe-11-0-6.ar1.lax1.us.nlayer.net (69.31.125.106)  35.143 ms  44.714 ms  44.666 ms
  15  198.41.191.47 (198.41.191.47)  37.638 ms  37.239 ms  36.997 ms

I don't know how normal or ethic is this type of cache. No download limits, I have the 10mb and get 20mb(2000-2300kbps) downloads, for uploads is limited to 1mb.