AS21756 SIDERCA S.A.I.C. 🇦🇷 AR

Announcing 5 prefixes, seen at the RIS collectors.

IPv4 prefixes

1,280 (5 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS21756
Name: SIDERCA S.A.I.C.
Organisation: SIDERCA S.A.I.C.
Country: 🇦🇷 AR
RIR: LACNIC
Allocated: 2001-06-15

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

5 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.lacnic.net

aut-num:     AS21756
owner:       SIDERCA S.A.I.C.
ownerid:     AR-ASTE1-LACNIC
responsible: Matias Marzullo
address:     Della Paolera, 299, Piso 12
address:     1001 - Buenos Aires - CF
country:     AR
phone:       +54  1159849432 [0000]
owner-c:     MAM715
routing-c:   MAM715
abuse-c:     MAM715
created:     20010615
changed:     20260318

nic-hdl:     MAM715
person:      Matias Marzullo
e-mail:      mmarzullo@tenaris.com
address:     dr simini, 250,
address:      - Campana - buenos aires
country:     AR
phone:       +54  1159849432
created:     20250918
changed:     20250918