AS15322 — UPWARD-BROADBAND

AS15322 announces 2 IPv4 prefixes covering 1,280 addresses and 0 IPv6 prefixes.

About this network

The one reverse answer is a broken record with a slash in it and the reverse zone appended.

What it's used for

• A broadband provider. Two IPv4 prefixes announced from the United States, no IPv6, and three observed BGP neighbours.

Notable

• The single answering address returns upwardbb.161-38-34-/21.net.34.38.161.in-addr.arpa, which is not a valid hostname.
• It contains a slash, a character no hostname may hold, and it ends with the reverse lookup zone for the block itself.
• That ending is the giveaway: the record was written without a trailing dot, so the DNS treated it as a relative name and appended the zone it was defined in.
• Both blocks share one netname, the company name, and one registrant, so the registry side is consistent.
• Six addresses were queried for reverse DNS and one returned a name.

Interesting

• This is the most instructive mistake in this range because it is so common and so rarely seen in the wild. A missing dot at the end of a record turns an absolute name into a relative one, and the zone origin gets glued on.
• The slash suggests the record was copied from a prefix notation rather than typed as a hostname, which means the value was pasted from a spreadsheet or a ticket into a field expecting a name.
• Nothing breaks visibly. The lookup succeeds and returns a string, so the error survives until somebody tries to use the answer.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 161.38.32.0/22
• 216.116.140.0/24

Upstream networks

• AS701 Verizon Business
• AS26801 Zito Media, L.P.
• AS7016 Comcast Cable Communications, LLC

Adjacent networks

• AS701 Verizon Business
• AS26801 Zito Media, L.P.
• AS7016 Comcast Cable Communications, LLC

Routing security

• RPKI: 1 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-COMCAST-EDIA, AS-ZITOMEDIA, AS-ZITOMEDIA.