Autonomous system
AS24635 SYNTAX_SYSTEMS-AS
Unclassified RIPE
Summary
Syntax Service GmbH
business germany ipv4
The AS handle SYNTAX_SYSTEMS-AS is held by Syntax Service GmbH.
What it's used for
- The address space carries the netname
Syntaxacross all six announced IPv4 prefixes, indicating a single corporate entity. - The network announces 64,512 IPv4 addresses across 6 prefixes while maintaining only 3 observed neighbours, a ratio that suggests an internal corporate estate or business network rather than a transit provider.
Notable
- All registrants for the announced prefixes are listed as
unknown, though the netnameSyntaxconsistently aligns with the registry holder Syntax Service GmbH. - The address inventory consists entirely of IPv4 space within the 153.95.0.0/17 block, subdivided into six distinct prefixes ranging from /17 to /22.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 64.51K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 6 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS24635- Registry name
- Syntax_Systems-AS
- Registrant
- Syntax Service GmbH
- Abuse contact
- auftrag@nic.telekom.de
- Registered
- 2002-01-25
- Last changed
- 2024-09-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS24635
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 21 naming AS24635
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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