AS28576 ITIBR - Instituto de Tecnologia Informacao Brasil

🇧🇷

Org handle: 101745

LACNICallocated

Announced Prefixes (BGP)

15total

14 IPv41 IPv6

IPv4 Addresses

Allocated (RIR)12,288

Announced (BGP)11,264

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2004-04-06

Announced Prefixes

(BGP)15

Prefix	RPKI	IRR	Last Seen
187.73.128.0/21	Valid	-	2026-10-11
187.73.130.0/24	Valid	Other IRR	2026-10-11
187.73.132.0/24	Valid	Other IRR	2026-10-11
189.38.16.0/22	No ROA	-	2026-10-11
189.38.16.0/23	Valid	-	2026-10-11
189.38.19.0/24	No ROA	Other IRR	2026-10-11
189.38.20.0/23	Valid	-	2026-10-11
189.38.24.0/21	No ROA	-	2026-10-11
200.220.144.0/22	Valid	-	2026-10-11
200.220.146.0/24	Valid	Other IRR	2026-10-11

1-10 of 15

1 / 2

(RIR)4

Prefix	Country	RIR	Status
187.73.128.0/20	🇧🇷 BR	LACNIC	allocated
189.38.16.0/20	🇧🇷 BR	LACNIC	allocated
200.220.144.0/20	🇧🇷 BR	LACNIC	allocated
2804:3c::/32	🇧🇷 BR	LACNIC	allocated

(seen in AS paths)

Networks AS28576 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 AS28576 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/28576" | jq