T-Four Services S.A
AS16973 is T-Four Services S.A (tagsystems.com). It announces 4,096 IPv4 addresses in 14 prefixes, and 1 IPv6 prefixes.
Costa Rica· LACNIC· allocated 2000-07-07· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Costa Rica3,072 · 75.00%
- United States1,024 · 25.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- name
- T-Four Services S.A
- org
- CR-CHSA-LACNIC
- org name
- T-Four Services S.A
- org address
- -, Centro Tecnologico - Tibas, San Jose, --, CR
- org country
- CR
- country
- CR
- source
- lacnic
- status
- DIRECT ALLOCATION
- created
- 2000-07-07
- updated
- 2023-06-20
- descr
- T-Four Services S.A
- abuse
- IDS8
- abuse name
- Adrian Murillo
- abuse email
- amurillo@tagsystems.com
- abuse phone
- +506 46008240#104
- abuse kind
- role
- admin
- IDS8
- admin name
- Adrian Murillo
- admin email
- amurillo@tagsystems.com
- admin phone
- +506 46008240#104
- admin kind
- role
- tech
- IDS8
- tech name
- Adrian Murillo
- tech email
- amurillo@tagsystems.com
- tech phone
- +506 46008240#104
- tech kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- Hosting IP2,04850.00%
- None here
- None here
- None here
- 0.17%
- SMTP IP320.78%
- 0.29%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 38.247.112.0/22 | United States | not found | 18 | 2026-10-02 |
| 168.205.64.0/22 | Costa Rica | valid | 17 | 2026-10-02 |
| 168.205.64.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 168.205.65.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 168.205.66.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.88.0/21 | Costa Rica | valid | 17 | 2026-10-02 |
| 190.4.88.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.89.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.90.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.91.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.92.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.93.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.94.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
| 190.4.95.0/24 | Costa Rica | valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2803:3100::/32 | Costa Rica | valid | 20 | 2026-10-02 |
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