In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within usa, can. Inferred improvements during Feb 2019: ASN Name Fixed-By 16842 5DL 2019-02-01 7922 COMCAST-7922 2019-02-02 18451 LESNET 2019-02-11 12083 WOW-INTERNET 2019-02-21 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Feb 2019: ASN Name First-Spoofed Last-Spoofed 5650 FRONTIER-FRTR 2016-02-22 2019-02-20 15003 AS-UBIQUITY 2016-03-24 2019-02-01 19230 NANOG 2016-06-13 2019-02-20 7029 WINDSTREAM 2016-06-21 2019-02-15 209 CENTURYLINK-US-LEGACY-QWEST 2016-08-16 2019-02-26 6128 CABLE-NET-1 2016-09-03 2019-02-23 20412 CLARITY-TELECOM 2016-09-30 2019-02-21 6181 FUSE-NET 2016-10-10 2019-02-23 25787 ROWE-NETWORKS 2016-10-21 2019-02-14 174 COGENT-174 2016-10-21 2019-02-25 31857 PRIORITY-TERABIT 2016-10-25 2019-02-09 30341 SCTA-ASN 2016-10-31 2019-02-25 32440 LONI 2016-11-03 2019-02-26 12083 WOW-INTERNET 2016-11-09 2019-02-23 13427 SOFTCOM-INTERNET-COMMUNICATION 2016-11-14 2019-02-26 3549 LVLT-3549 2016-11-16 2019-02-22 7106 INDEPENDENTSFIBERNETWORK 2017-01-09 2019-02-18 21832 KELLINCOM-1 2017-02-03 2019-02-23 18451 LESNET 2017-02-22 2019-02-20 6597 CBDC-6597 2017-04-27 2019-02-08 701 UUNET 2017-06-14 2019-02-04 6461 ZAYO-6461 2017-06-21 2019-02-26 63296 AMARILLO-WIRELESS 2017-09-01 2019-02-27 7233 YAHOO-US 2017-09-07 2019-02-19 14051 SUREWEST 2017-10-26 2019-02-24 33523 ROWANUNIVERSITY 2017-10-29 2019-02-26 546 PARSONS-PGS-1 2017-11-20 2019-02-19 12222 AKAMAI 2018-02-14 2019-02-27 8100 ASN-QUADRANET-GLOBAL 2018-04-06 2019-02-28 4201 ORST 2018-04-19 2019-02-27 393564 SPOKANE 2018-06-05 2019-02-27 225 VIRGINIA 2018-06-18 2019-02-25 54804 CSMIII-BUNKIELA 2018-09-15 2019-02-04 33452 RW 2018-09-19 2019-02-22 20448 VPNTRANET-LLC 2018-09-20 2019-02-26 11996 LOBOIS 2018-09-24 2019-02-22 13825 TROYCABLE-NET 2018-11-21 2019-02-16 63275 RADIOWIRE 2019-02-07 2019-02-07 18534 FIBER-CA 2019-02-08 2019-02-08 10965 MRNET 2019-02-11 2019-02-11 715 WOODYNET-2 2019-02-13 2019-02-13 6360 UNIVHAWAII 2019-02-25 2019-02-25 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=usa,can&no_block=1 Please send any feedback or suggestions to spoofer-info@caida.org