AS12672 — ASN-RINGIER

AS12672 announces 5 IPv4 prefixes covering 1,280 addresses and 2 IPv6 prefixes.

About this network

Two IPv6 subnets numbered 8888 and 9999, and a mail server with its own address written in hexadecimal.

What it's used for

• Publishing and online media infrastructure. 1,280 addresses in five IPv4 prefixes, two IPv6 prefixes, and no aggregation between them.

Notable

• The IPv6 announcements are 2a00:ff0:8888::/48 and 2a00:ff0:9999::/48.
• Four blocks carry the netname RINGIER-ROMANIA and one is Ringier-DC.
• Three of them are registered through ABUSE ICI LIR, a sponsoring member rather than the company itself.
• One sampled address of fifteen answered, as mta127-C1E7CD.mta.ejobs.ro.

Interesting

• C1E7CD is 193.231.205 in hexadecimal, and 127 is the last octet in decimal. One hostname, two number bases, describing the same address twice. It is the second scheme of this kind in this stretch of the number range, which suggests the tooling that produces it is more common than it looks.
• mta is a mail transfer agent, named twice in one hostname. Bulk mail senders label their outbound machines carefully because receiving systems judge reputation per address, so the naming is aimed at other mail servers rather than at people.
• Repeated digits in a subnet number are a human choice. IPv6 gives an operator 65,536 subnets in a /32 and no reason to prefer any of them, so somebody picked 8888 and 9999 because they are easy to remember and type — the same instinct that produces memorable phone numbers.

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

Announced prefixes

• 91.216.152.0/24
• 193.230.138.0/24
• 193.230.142.0/24
• 193.230.228.0/24
• 193.231.205.0/24
• 2a00:ff0:8888::/48
• 2a00:ff0:9999::/48

Upstream networks

• AS8953 Orange Romania S.A.
• AS39737 Prime Telecom srl

Adjacent networks

• AS8953 Orange Romania S.A.
• AS39737 Prime Telecom srl