AS559

Switch, Swiss Academic and Research Network

Peering requests: <[email protected]>

Peering policy: https://www.switch.ch/de/network/operations/peering-policy/

Present at CIXP (Geneva), Equinix Zurich, SwissIX (Zurich), AMS-IX, DE-CIX

Community support

Remote Triggered Black Hole Filtering (RTBH)

============================================

Destination-based black hole filtering according to

RFC3882 and RFC5635 (section 3.1). Customers can

announce any /32 or /128 covered by their routed

prefixes to AS559 tagged with any combination of the

following communities. All traffic towards such

addresses is discarded. Communities in the range

559:601-559:611 are translated into the communities

used by the RTBH services of upstreams/peers and

propagated to the respective ASs.

Community Filter Scope

--------------------------------------------

559:600 SWITCHlan (AS559) border

. NOTE: This also affects traffic internal to

. AS559 that transits a border router

559:602 CenturyLink (AS3356)

559:603 Telia (AS1299)

559:604 Cogent (AS174)

559:610 UTRS (https://www.team-cymru.org/UTRS/)

559:611 GEANT (AS20965, AS21320)

559:666 All (equivalent to the union of all

. RTBH communities above)

AS 是什么。自治系统（Autonomous System）是互联网上一张张由单一机构管理的网络，AS 号（ASN）就是它的编号；谁宣告了哪些 IP 段，全球路由表里就记在谁的 AS 号下。

能看出什么。归属地只到城市时，AS 号能进一步说明这段 IP 属于哪家运营商、云厂商或机房 —— 例如 AS37963 是阿里云、AS4134 是中国电信、AS13335 是 Cloudflare。

数据从哪来。按 IANA 的 RDAP bootstrap 找到该号所属的区域注册机构（APNIC / ARIN / RIPE NCC 等），读取其公开的 RDAP 记录；结果会缓存在本站，重复打开不再重复请求。

想查某个 IP 属于哪个 AS，请用 网站 IP 查询 —— 结果页「AS」一行的链接就会跳到这里。