AS15853 — NATSEC

AS15853 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

A netname written in mixed case, where nearly every other netname in this range shouts.

What it's used for

• A securities firm's network. One IPv4 /24 announced from Greece, no IPv6, two hundred and fifty-six addresses, across two observed BGP neighbours.

Notable

• The netname is a six-letter contraction with a capital in the middle and lower-case letters elsewhere, so it reads as a brand rather than as a database key.
• The AS handle is that same contraction in full capitals, so the two fields hold the same word in two cases.
• The registrants are the parent bank's initials with a legal form, and the same initials with the three letters for a network operations centre.
• Neither field contains the word for securities that appears in the company's registered name.
• Two hundred and fifty-six addresses are announced as one route, the smallest that can be.
• The routing archive has carried this number since the earliest data it holds.
• Three addresses were queried for reverse DNS and none returned a name.

Interesting

• The registry stores netnames case-sensitively and almost nobody uses that. Capitals became the convention because early records were typed on systems that had nothing else, and the habit outlived the constraint by decades.
• A brokerage arm holding its own number while its contacts point at the parent bank is the usual arrangement: the trading systems need addresses that survive a change of provider, and the bank's network team runs them.

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

Announced prefixes

• 195.35.126.0/24

Upstream networks

• AS25472 Nova Telecommunications & Media Single Member S.A
• AS3329 Vodafone-panafon Hellenic Telecommunications Company SA

Adjacent networks

• AS25472 Nova Telecommunications & Media Single Member S.A
• AS3329 Vodafone-panafon Hellenic Telecommunications Company SA