AS21756 SIDERCA S.A.I.C.

🇦🇷

Org handle: 23435

LACNICallocated

Announced Prefixes (BGP)

5total

5 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)512

Announced (BGP)1,280

IPv6 Addresses

Allocated (RIR)3×10²⁶

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2001-06-15

Announced Prefixes

(BGP)5

Prefix	RPKI	IRR	Last Seen
200.1.117.0/24	Valid	Other IRR	2026-10-11
200.9.229.0/24	Valid	Other IRR	2026-10-11
200.69.130.0/24	Valid	Other IRR	2026-10-11
200.80.222.0/24	Valid	Other IRR	2026-10-11
201.234.38.0/24	Valid	LACNICOther IRR	2026-10-11

(RIR)3

Prefix	Country	RIR	Status
200.1.117.0/24	🇦🇷 AR	LACNIC	assigned
200.9.229.0/24	🇦🇷 AR	LACNIC	assigned
2801:188::/40	🇦🇷 AR	LACNIC	assigned

(seen in AS paths)

Networks AS21756 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

External Links

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS21756 should publish an ASPA object
IPv4 transfers in the LACNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/21756" | jq