Router Naming Convention for twttr.com, 201307

Regular Expressions:

  1. ^[^\.]+\.([a-z]+\d+-[a-z]+\d+)\.twttr\.com$

Statistics:

Legend:

Green

+ Inferred identifier, true positive when evaluated against training data

Orange

- Inferred identifier, false negative when evaluated against training data

Red

! Inferred identifier, false positive when evaluated against training data

Red

x Inferred identifier, but contains part of IP address literal embedded in hostname
~ False negative, not matched
o No regex matched the interface, but the interface was the only interface in this suffix on the router
* A filter regex matched the interface

Evaluation against training data:

ams1-cr1
199.16.159.120+xe-0-0-1.ams1-cr1.twttr.com
199.16.159.118+xe-1-0-0.ams1-cr1.twttr.com
81.20.64.98xe-0-6-0-18.r02.amstnl02.nl.ce.gin.ntt.net
 
atl1-er1
199.16.159.73+ae50.atl1-er1.twttr.com
199.16.159.61+ae51.atl1-er1.twttr.com
199.16.159.75ae53.atl1-er1.net.twttr.net
 
atl1-er2
199.16.159.71+ae50.atl1-er2.twttr.com
199.16.159.67+ae51.atl1-er2.twttr.com
199.16.159.65ae53.atl1-er2.net.twttr.net
 
atl2-cr1
199.16.159.81+ae60.atl2-cr1.twttr.com
199.16.159.98+xe-0-0-0.atl2-cr1.twttr.com
199.16.159.104+xe-0-3-0.atl2-cr1.twttr.com
199.16.159.91!xe-1-3-0.atl2-cr2.twttr.com
 
atl2-cr2
199.16.159.83+ae60.atl2-cr2.twttr.com
199.16.159.99+xe-0-0-0.atl2-cr2.twttr.com
199.16.159.106+xe-0-0-0.atl2-cr2.twttr.com
199.16.159.97+xe-0-3-1.atl2-cr2.twttr.com
4.53.233.42twitter-inc.edge1.atlanta4.level3.net
 
iad1-cr1
199.16.159.84+ae60.iad1-cr1.twttr.com
199.16.159.123+xe-0-2-1.iad1-cr1.twttr.com
199.16.159.90+xe-1-3-0.iad1-cr1.twttr.com
199.16.159.127+xe-3-0-1.iad1-cr1.twttr.com
62.115.33.198twitter-ic-302255-ash-b2.c.telia.net
 
iad1-cr2
199.16.159.86+ae60.iad1-cr2.twttr.com
199.16.159.57+xe-0-1-1.iad1-cr2.twttr.com
199.16.159.96+xe-0-2-1.iad1-cr2.twttr.com
199.16.159.109+xe-1-0-0.iad1-cr2.twttr.com
199.16.159.125~xe-1-2-1.iad-cr2.twttr.com
4.53.114.82twitter-inc.edge2.washington4.level3.net
62.115.33.194twitter-ic-302253-ash-b2.c.telia.net
 
mia1-cr1
199.16.159.107+xe-1-0-0.mia1-cr1.twttr.com
129.250.196.118xe-0-7-0-18.r04.miamfl02.us.ce.gin.ntt.net
 
nyc1-cr1
199.16.159.108+xe-0-0-0.nyc1-cr1.twttr.com
4.26.35.158twitter-inc.edge3.newyork1.level3.net
129.250.196.90xe-0-0-0-8.r05.nycmny01.us.ce.gin.ntt.net
 
pao1-cr1
199.16.159.85+ae60.pao1-cr1.twttr.com
199.16.159.16+xe-0-1-0.pao1-cr1.twttr.com
129.250.196.102xe-0-4-0-2.r05.plalca01.us.ce.gin.ntt.net
 
pao1-cr2
199.16.159.87+ae60.pao1-cr2.twttr.com
199.16.159.18+xe-0-0-1.pao1-cr2.twttr.com
199.16.159.15+xe-0-3-0.pao1-cr2.twttr.com
199.16.159.1+xe-0-3-1.pao1-cr2.twttr.com
199.16.159.111+xe-1-3-0.pao1-cr2.twttr.com
 
sjc2-cr1
199.16.159.80+ae60.sjc2-cr1.twttr.com
199.16.159.8+xe-0-3-1.sjc2-cr1.twttr.com
129.250.196.94ae-0.twitter.snjsca04.us.bb.gin.ntt.net
62.115.33.162twitter-ic-302230-sjo-bb1.c.telia.net
 
sjc2-cr2
199.16.159.82+ae60.sjc2-cr2.twttr.com
199.16.159.19+xe-0-0-1.sjc2-cr2.twttr.com
199.16.159.23+xe-0-3-0.sjc2-cr2.twttr.com
199.16.159.9+xe-0-3-1.sjc2-cr2.twttr.com
4.53.210.50twitter-inc.edge2.sanjose3.level3.net
129.250.196.98ae-1.twitter.snjsca04.us.bb.gin.ntt.net
62.115.33.166twitter-ic-302232-sjo-bb1.c.telia.net
 
smf1-er1
199.16.159.29+ae51.smf1-er1.twttr.com
199.16.159.49+ae52.smf1-er1.twttr.com
199.16.159.37+ae53.smf1-er1.twttr.com
 
smf1-er2
199.16.159.53+ae50.smf1-er2.twttr.com
199.16.159.55+ae52.smf1-er2.twttr.com
199.16.159.41+ae53.smf1-er2.twttr.com
 
tyo1-cr1
199.16.159.14+xe-0-0-0.tyo1-cr1.twttr.com
199.16.159.13+xe-1-0-0.tyo1-cr1.twttr.com
 
199.16.159.116-xe-1-0-0.dfw1-cr1.twttr.com
199.16.159.114!xe-3-1-1.sjc2-cr2.twttr.com
4.59.36.126twitter-inc.edge2.dallas3.level3.net