Spoofer Report for NANOG for Jun 2025

[CAIDA Spoofer Project via NANOG <nanog () lists nanog org>]

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 Jun 2025:
ASN    Name                                           Fixed-By
19230  NANOG                                          2025-06-10
27364  ACS-INTERNET                                   2025-06-12
40676  AS40676                                        2025-06-29

Further information for the inferred remediation is available at:
https://spoofer.caida.org/remedy.php

Source Address Validation issues inferred during Jun 2025:
ASN    Name                           First-Spoofed Last-Spoofed
40676  AS40676                           2016-08-29   2025-06-24
63296  AWBROADBAND                       2017-09-01   2025-06-26
22883  CONDENAST                         2019-05-29   2025-06-30
21804  ACCESS-SK                         2019-06-09   2025-06-24
12183  TALKIE-COMMUNICATIONS             2022-12-10   2025-06-26
400282                                   2023-04-27   2025-06-25
393577 SCCNET                            2023-05-03   2025-06-26
61461  Airtek Solutions C.A.             2023-05-13   2025-06-26
20119  ARROW                             2023-10-19   2025-06-27
394684 WISPERNET                         2024-01-17   2025-06-27
393530 TLU                               2024-05-22   2025-06-28
19935  CRRS                              2024-05-29   2025-06-26
30475  WEHOSTWEBSITES-COM                2024-09-30   2025-06-09
54334  ROYA                              2025-03-13   2025-06-25
16739  MIDCO-NET-INV                     2025-03-19   2025-06-04
138915 KAOPU-HK                          2025-03-30   2025-06-06
273843                                   2025-04-02   2025-06-30
400175                                   2025-06-08   2025-06-09
213953                                   2025-06-09   2025-06-09
42337  RESPINA                           2025-06-09   2025-06-09

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
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