Why did I suddenly start getting lag spikes while playing games?

[View:http://www.pingtest.net/result/81055446.png]

that is the results from Pingtest.net

I have not contacted my ISP yet but I have been gaming for a long time on xbox and this is the first time I have ever experienced these lag spikes.

This was ran while in a game of Black Ops 2.

Without these are my results (during lag spike):

http://www.pingtest.net/result/81055572.png

This was tested while a lag spiked happened while in my xbox live party when my friend was talking and then his voice got choppy

message me back on ..i think i have same damn issue..i get the same ur expieriencing while playin halo reach...ever since i moved i got an awsome connection supposedly but then y do i still get lag spikes 36d 8 up should not spike even when im
off host and if im host my friends in same game get lag

ok im playing on wireless and I ran the ping while playing. I was playing fine and when I backed out, this is when it started. Sometimes it will spike while im playing or right after I back out to the home screen. Here are the results when it started lagging:

64.233.168.106: bytes=32 time 2806 ms ttl 46

2431

2257

1827

1767

1800

1765

1767

1790

1820

417

I was able to play fine the other week, and then suddenly it started to make me lag during games and then it disconnects me from the internet.

the packet loss is new it started a while ago but according to xbox its on there part and it should be fixed once they sort the packet loss but the thing is i was playing with the 100% packet loss and no problems but then a lag spike happend and even when
fixed i can only party chat for about 10 seconds