Router Naming Convention for twttr.com

Regular Expressions:

1.^.+\.([a-z]{3})\d+\.twttr\.com$ -- iata -- 5 TPs

Statistics:

Legend:

Bold Apparent custom geocode

Green

+ Extracted apparent geocode, true positive when evaluated against training data

Orange

~ False negative, apparent geocode unmatched

Purple

? Extracted geocode, but not in dictionary

Red

! Extracted apparent geocode, false positive when evaluated against training data

Geocodes:

Hint Location Closest VP
iadWashington, DC, VA, US dca-us2ms
laxLos Angeles, CA, US lax3-us3ms
sjcSan Jose, CA, US sjc2-us1ms

Evaluation against training data:

lax: lax3-us 3ms, id 33473
206.223.123.144+[1]cr1.lax1.twttr.com
168.143.97.182ce-2-0-1.a02.lsanca20.us.ce.gin.ntt.net
63.218.51.18663-218-51-186.static.pccwglobal.net
 
lax: lax3-us 3ms, id 28936
206.223.123.177+[1]cr2.lax1.twttr.com
4.16.24.18twitter-inc.edge7.losangeles1.level3.net
199.59.151.94
 
iad: dca-us 2ms, id 28953
206.126.236.97+[1]eqix1.cr1.iad1.twttr.com
63.218.94.250twitter.be5.br04.ash01.as3491.net
4.16.78.178twitter-inc.edge6.washington12.level3.net
 
sjc: sjc2-us 1ms, id 33492
206.223.116.94+[1]eqix1.cr1.sjc2.twttr.com
63.218.179.202twitter.be16.br04.sjo01.as3491.net
168.143.105.122ce-5-4-1.a03.snjsca04.us.ce.gin.ntt.net
 
sjc: sjc2-us 1ms, id 45135
206.223.116.101+[1]eqix2.cr2.sjc2.twttr.com
4.71.114.74twitter-inc.edge1.sanjose1.level3.net
 
fra-gc 1ms, id 15668901
80.81.192.10~cr1-fra1.twttr.com
 
fra-gc 1ms, id 18403831
80.81.194.21~cr2-fra1.twttr.com
 
lcy2-uk 2ms, id 25315135
195.66.225.142~xe-1-1-0.cr1-lon1.twttr.com
 
bfi-us 3ms, id 82237
199.59.151.66 r-199-59-151-66.twttr.com
128.241.10.155ae-0.x-corp.sttlwa01.us.bb.gin.ntt.net
 
lcy2-uk 2ms, id 96547
199.16.159.190 xe-3-0-1.pao1-cr2.twttr.com
212.119.4.106ce-0-1-1.a01.londen17.uk.ce.gin.ntt.net
 
ams-gc 2ms, id 96653
199.59.151.56 r-199-59-151-56.twttr.com
213.19.203.62twitter-inc.ear7.amsterdam1.level3.net
 
svo2-ru 5ms, id 46847547
199.59.151.48 r-199-59-151-48.twttr.com
 
ind-us 5ms, id 46847550
199.59.151.86 r-199-59-151-86.twttr.com