AS3320

Internet service provider operations

peering coordinators for AS3320: <[email protected]>

abuse reports should be sent to the contacts listed in the registry entries for the IP address of the offending host system

We share the view that for many networks (including ours:-) only some abstraction of the actual routing policy should/can be published in the IRR. Right now we are abstracting to a very essential minimum.

the most important and helpful use of the IRR is to publish what a network will announce to peers and upstream

we encourage all our neighbors to define and maintain an AS-set to describe their announcements, and to register all the routes (and have their customers do so as well)

we maintain a list of what our neighbors have told us about their announcements towards AS3320 - in terms of AS-set (preferred), AS number, route-set (and the IRR database used to publish)

in fact we apply route filters based on this for all neighbors - as far as feasible

for data published through the RIPE routing registry we generate filters automatically

we consider the integration of RIR and routing registry data and the application of RPSS authorization a great feature of the RIPE routing registry

customers are strongly encouraged to define and maintain an AS-set that we will include in the definition of AS3320:AS-DTAG (if we are told the name)

this will be sufficient to have our peers accept the routes

in any case peers - and any network in the Internet - is free to apply some selective policy (e.g. prefix length based)

unfortunately some customers do not provide usable IRR data; we will NOT add to the uncontrolled garbage in the IRR by proxy registering in some database that requires no authorization

we advise customers that routes without IRR registration and not covered by AS3320:AS-DTAG may receive less than full support by some of our peer networks and other parts of the Internet

============================================================== IPv6 we do/publish essentially the same like for IPv4

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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。