IPv4 Subnet 23.151.232.0/24 blackholed?

Wed Apr 26 02:49:42 UTC 2023

Neel,

Carriers rebuild their prefixes lists once or twice in a 24 hour period. 
Considering that you just got the block today and is in ReliableSite's 
AS-SET, you just got to be patient.

Having announcements propagated immediately either sounds like it 
happened a day after you gave them the LOA, or they have unfiltered 
transit circuits, which is worrisome.

Ryan

------ Original Message ------
>From "Neel Chauhan" <neel at neelc.org>
To nanog at nanog.org
Date 4/25/2023 7:35:40 PM
Subject IPv4 Subnet 23.151.232.0/24 blackholed?

>Hi,
>
>I recently got the IPv4 allocation 23.151.232.0/24 from ARIN. I also had my hosting company ReliableSite announce it to the internet.
>
>Right now, I can only access networks that peer with ReliableSite via internet exchanges, such as Google, CloudFlare, OVH, Hurricane Electric, et al.
>
>It seems the Tier 1 ISPs (e.g. Lumen, Cogent, AT&T, et al.) are blackholing the IPv4 subnet 23.151.232.0/24. Could someone who works at a Tier 1 NOC please check and remove the blackhole if any exists?
>
>Normally when ReliableSite announced my prior (then-leased) IPv4 space it gets propagated via BGP almost immediately. This time it's not going through at all.
>
>Best,
>
>Neel Chauhan