AS28571 UNIVERSIDADE DE SAO PAULO

🇧🇷

Org handle: 106813

LACNICallocated

Announced Prefixes (BGP)

63total

53 IPv410 IPv6

IPv4 Addresses

Allocated (RIR)94,464

Announced (BGP)178,432

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

RIR

Status

allocated

Allocated

2007-12-19

Announced Prefixes

(BGP)63

Prefix	RPKI	IRR	Last Seen
143.107.0.0/16	Valid	Other IRR	2026-10-08
143.107.3.0/24	Valid	-	2026-10-08
143.107.8.0/24	Valid	-	2026-10-08
143.107.14.0/24	Valid	-	2026-10-08
143.107.27.0/24	Valid	-	2026-10-08
143.107.44.0/23	Valid	-	2026-10-08
143.107.64.0/24	Valid	-	2026-10-08
143.107.84.0/23	Valid	-	2026-10-08
143.107.86.0/24	Valid	-	2026-10-08
143.107.88.0/24	Valid	-	2026-10-08

1-10 of 63

1 / 7

(RIR)6

Prefix	Country	RIR	Status
143.107.0.0/16	🇧🇷 BR	LACNIC	assigned
200.9.95.0/24	🇧🇷 BR	LACNIC	assigned
200.17.16.0/20	🇧🇷 BR	LACNIC	assigned
200.144.160.0/19	🇧🇷 BR	LACNIC	assigned
200.144.192.0/18	🇧🇷 BR	LACNIC	assigned
2001:12d0::/32	🇧🇷 BR	LACNIC	assigned

(seen in AS paths)

Networks AS28571 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 AS28571 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/28571" | jq