Calling TeliaSonera - time to implement prefix filtering

Geoff Huston gih at
Wed Apr 16 02:40:47 UTC 2008

Martin Hannigan wrote:
> Yes, it is operational.
> On 4/15/08, Fred Reimer <freimer at> wrote:
>> But isn't this what nanog is for?  It appears to be more on-topic than the
>> email threads.  More E than S.

As well as there is (originated by AS13064, with upstreams of AS13237 (LambdaNet) and AS 8447 (Telekom Austria)

Unlike, which is being announced as a stable announcement (and has AS 1299 (Telianet) as its upstream, is being announced for periods of 30 seconds to 1 minute.

Last time we saw this short announce behaviour it was a spammer using the "vacant" addresses in the /8 block to generate spam in short bursts. I have no data on what is going on with

Here's what I see in terms of recent BGP activity for and for


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