AS15689 — ASNUM-ORG-AISN1-RIPE

AS15689 announces 1 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

The AS handle is a machine-generated registry object identifier, prefix and suffix included.

What it's used for

• An IT services company's network. One IPv4 /21 and one IPv6 prefix announced from the United Kingdom, two thousand and forty-eight addresses, across two observed BGP neighbours.

Notable

• The handle reads as four parts joined by hyphens: a word meaning AS number, a word meaning organisation, a generated four-letter abbreviation with a digit appended, and the registry's own name at the end.
• Nothing in that string was typed by a person. It is the internal identifier of the organisation record, published as the name of the network.
• The single IPv4 block's netname compresses the company name and drops the city that appears in the holder string, then adds an allocation date.
• The IPv6 allocation is a /29, which is the standard opening size regardless of how small the IPv4 footprint is.
• The block lists the company and an abuse role.
• Three addresses were queried for reverse DNS and none returned a name.

Interesting

• Generated identifiers leaking into name fields is what happens when a form pre-fills a default and the default is never replaced. It is harmless and it means every tool that shows a network name shows this one a piece of the registry's plumbing.
• Two thousand addresses of IPv4 beside an IPv6 block big enough for billions is the modern asymmetry in one record.

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

Announced prefixes

• 46.18.48.0/21
• 2a01:5980::/29

Upstream networks

• AS39326 Syntura Group Limited
• AS41354 ITS Technology Group Limited

Adjacent networks

• AS39326 Syntura Group Limited
• AS41354 ITS Technology Group Limited