Autonomous system
AS16277 TOC
Unclassified RIPE
Summary
contac Datentechnik
business hosting isp
The company spells its name one way, the second netname spells it another, and the contact is whoever is on duty.
What it's used for
- A data technology company's network. Two IPv4 prefixes announced from Germany, no IPv6, four thousand three hundred and fifty-two addresses, through one observed BGP neighbour.
Notable
- The holder field writes the company name entirely in lower case, which is how the company writes it and not how the registry usually does.
- The first netname is a country code, three letters of an abbreviation, and a full date. The second is a six-letter word that is the company name with an extra letter and a different ending, so the two blocks disagree about the spelling.
- The first registrant on the older block is a role called the hostmaster of the day, which names a shift rather than a person or a team.
- The AS handle is the three-letter abbreviation alone, so the routing label and the older netname agree while the newer netname stands apart.
- The two blocks differ in size by a factor of sixteen.
- Six addresses were queried for reverse DNS and none returned a name.
Interesting
- A rotating hostmaster role is an honest answer to the question the registry asks. It says the address goes to whoever is working, which is more accurate than any individual name would be a year later.
- Two spellings of one company across two blocks is how a small operator's records drift. Nobody compares them, because nobody reads both on the same day.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS196714 | Thueringer Netkom GmbH | 120 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 4.35K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS16277- Registry name
- TOC
- Registrant
- contac Datentechnik GmbH
- Abuse contact
- hostmaster@contac-dt.de
- Registered
- 1970-01-01
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS16277
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS16277
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere