AS15751 — METEORMOBILECOMMS-AS

AS15751 announces 7 IPv4 prefixes covering 24,832 addresses and 1 IPv6 prefixes.

About this network

The reverse names say which carrier address-translation instance each subscriber sits behind.

What it's used for

• A mobile operator's network. Seven IPv4 prefixes and one IPv6 prefix announced from Ireland, twenty-four thousand addresses, through a single observed BGP neighbour.

Notable

• Every answering name is the four octets hyphenated, then a label naming a carrier-grade translation instance and its number, then a three-letter site code, then the mobile brand's domain.
• Two different site codes appear across the sample, so the label distinguishes where the translation happens as well as that it happens.
• The netnames use three conventions: a country code with a date, the brand with a country code, and a three-letter code with an abbreviation for mobile broadband.
• The parent company's name is written with a capital first letter in some contacts and entirely in lower case in others, within the same record.
• Twenty-four thousand addresses depend on a single upstream.
• Eighteen addresses were queried and nine returned a name.

Interesting

• Publishing the translation instance tells anyone reading a log that the address is shared, which matters because thousands of subscribers can sit behind one of them at once. It is the difference between attributing traffic to a person and to a device the size of a city.
• Three netname conventions and two spellings of one company name is a mobile brand absorbed into a fixed-line parent, with each field updated at whatever point somebody needed it changed.

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

Announced prefixes

• 109.125.0.0/18
• 185.51.72.0/23
• 212.129.64.0/24
• 212.129.66.0/23
• 212.129.68.0/22
• 212.129.72.0/21
• 212.129.80.0/20
• 2a01:b340::/29

Upstream networks

• AS5466 Eircom Limited

Adjacent networks

• AS5466 Eircom Limited