AT&T/L3 interconnect?

[Deepak Jain <deepak () ai net>]

While jumping on the wagon of poking at a particular 175.x.x.x address, I noticed something in my trace:

10     5 ms     5 ms     5 ms  att-level3-30G.washingtondc.level3.net [4.68.62.30]
11    73 ms    72 ms    73 ms  cr2.wswdc.ip.att.net [12.122.84.82]
12    74 ms    74 ms    75 ms  cr1.cgcil.ip.att.net [12.122.18.21]
13    72 ms    72 ms    72 ms  cr2.dvmco.ip.att.net [12.122.31.85]
14    73 ms    72 ms    73 ms  cr1.slkut.ip.att.net [12.122.30.25]
15    73 ms    72 ms    72 ms  cr2.la2ca.ip.att.net [12.122.30.30]
16    72 ms    72 ms    72 ms  cr84.la2ca.ip.att.net [12.123.30.249]
17    73 ms    73 ms    73 ms  gar1.lsrca.ip.att.net [12.122.129.121]

Does anyone happen to know where the other end of this tunnel is that magically everything from a DC-DC hop to a DC-LA 
hop are all exactly 73ms?

thanks,

DJ