——————————————————
For registration information,
you can consult the following sources:
IANA
https://www.iana.org/assignments/as-numbers
AFRINIC (Africa)
http://www.afrinic.net/ whois.afrinic.net
APNIC (Asia Pacific)
http://www.apnic.net/ whois.apnic.net
ARIN (Northern America)
http://www.arin.net/ whois.arin.net
LACNIC (Latin America and the Carribean)
http://www.lacnic.net/ whois.lacnic.net
——————————————————
****************************
* THIS OBJECT IS MODIFIED
* Please note that all data that is generally regarded as personal
* data has been removed from this object.
* To view the original object, please query the RIPE Database at:
* http://www.ripe.net/whois
****************************
Authoritative registration information for AS
Numbers within this block remains in the ARIN
whois database: whois.arin.net or
web site: http://www.arin.net
You may find aut-num objects for AS Numbers
within this block in the RIPE Database where a
routing policy is published in the RIPE Database
data has been transferred from RIPE Whois Database 20050221
=============================================
Centurylink BGP Local Preference
———————————————
Customer default = 100
Peer default = 80
=============================================
Communities allowed from customers to alter
default local preference
———————————————
209:90 = Set Local Pref to 90
209:80 = Set Local Pref to 80
209:70 = Set Local Pref to 70
209:999 used for announcing routes greater
than /24 (will not be passed to peers)
May need to be arranged first
209:0 Blackhole community for null routing
May need to be arranged prior to using.
=============================================
Traffic Engineering communities allowed from
customers to alter advertisements to
selected peers. Advertisements can be
suppressed or pre-pended.
———————————————
209:888 = Do not announce to peers
209:64520 All peers
209:64530 ATT 7018
209:64540 Sprint 1239
209:64550 Verizon (UUNet) 701
209:64570 Savvis 3561
209:64580 NTT Verio 2914
209:64590 XO 2828
209:64600 Global Crossing 3549
209:64610 AboveNet 6461
209:64630 France Telecom 5511
209:64640 China Telecom 4134
209:64650 Tata (Teleglobe) 6453
209:64660 Cogent 174
209:64680 LG U-Plus (DACOM) 3786
209:64690 TeliaSonera 1299
209:64700 Reach 4637
209:64710 Reach Japan 9225
209:64720 Tinet (Tiscali) 3257
209:64730 PCCW 3491
209:64740 Deutsche Telekom 3320
209:64750 Telefonica 12956
209:64760 TW Telecom 4323
209:64770 China Unicom 4837
209:64780 PACNET 10026
209:64790 Reliance Globalcom 15412
209:64800 Cable Wireless 1273
209:64810 Telecom Italia 6762
-Note that above communities currently apply only
to North America peering sessions.
209:64xx0 do not announce to this peer
209:64xx1 prepend 209 once to this peer
209:64xx2 prepend 209 twice to this peer
209:64xx3 prepend 209 three times to this peer
209:64xx9 leak route to that peer. This is to be used in
conjunction with 209:888
Timezone Traffic Engineering
209:64990 do not announce to PST peers
209:64991 prepend once to PST peers
209:64992 prepend twice to PST peers
209:64993 prepend three times to PST peers
209:64980 do not announce to CST peers
209:64981 prepend once to CST peers
209:64982 prepend twice to CST peers
209:64983 prepend three times to CST peers
209:64970 do not announce to EST peers
209:64971 prepend once to EST peers
209:64972 prepend twice to EST peers
209:64973 prepend three times to EST peers
=============================================
Communities customers receive from Centurylink
———————————————
209:209 = Centurylink route/Centurylink Customer
209:209 and 209:888 together = Customer learned route not
passed to peers
209:888 = Peer learned route
POP origin communities
North America 209:1[1-4]..0_
PST 209:11..0_
MST 209:12..0_
CST 209:13..0_
EST 209:14..0_
ASIA 209:2[2-5]..0_
Singapore 209:22..0_
Hong Kong 209:23..0_
Japan 209:24..0_
Sydney 209:25..0_
Europe 209:41..0_
London 209:41010
=============================================
For questions or requests please consult with our NOC at
1-877-886-6515.
=============================================
The above information was collected from rr.level3.net, using
object “AS209” on November 1, 2026