Autonomous system
AS16973 T-Four Services S.A
Hosting LACNIC Enterprise
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Costa Rica Neutral Internet Exchange Point | San Jose, Costa Rica | 200.107.83.164 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CR | Costa Rica | 4 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
AS16973- Registry name
- 16973
- Registrant
- T-Four Services S.A
- Abuse contact
- amurillo@tagsystems.com
- Registered
- 2000-07-07
- Last changed
- 2023-06-20
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- TAG Systems
- Also known as
- TAG Systems de Costa Rica
- Network type
- Enterprise
- Scope
- Global
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Present at
- 1 exchanges
- Website
- https://www.tagsystems.com/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 93% valid · 14 valid, 1 with no ROA
- ROAs
- 6 authorising AS16973
- ASPA
- no ASPA record
- IRR
- 100% registered · 15 of 15 announcements
- Route objects
- 24 naming AS16973
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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