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AS28571 UNIVERSIDADE DE SAO PAULO

AS28571 - UNIVERSIDADE DE SAO PAULO · registered in Brazil

IPv4 addresses154,62447 prefixes · 0.005% of announced IPv4
Rank in Brazil#24largest network in BR by IPv4 space, of 7,969 · 0.21% of BR
Rank worldwide#1,295of 79,396 networks with IPv4
IPv61 x /32 (65,536 x /48)66 prefixes
CountryBrazil8,771 ASNs registered there
Open AS28571 in ASN lookup Look up an IP in this network (143.107.0.1) All networks in Brazil

IPv4 prefixes

All 47 prefixes, in address order.

  • 143.107.0.0/22
  • 143.107.4.0/22
  • 143.107.8.0/21
  • 143.107.16.0/20
  • 143.107.32.0/19
  • 143.107.64.0/18
  • 143.107.128.0/20
  • 143.107.144.0/21
  • 143.107.152.0/23
  • 143.107.154.0/24
  • 143.107.155.0/24
  • 143.107.156.0/22
  • 143.107.160.0/19
  • 143.107.192.0/19
  • 143.107.224.0/20
  • 143.107.240.0/21
  • 143.107.248.0/24
  • 143.107.249.0/24
  • 143.107.250.0/23
  • 143.107.252.0/22
  • 177.90.64.0/18
  • 177.90.128.0/17
  • 200.9.95.0/24
  • 200.17.16.0/20
  • 200.18.53.0/24
  • 200.18.106.0/23
  • 200.18.108.0/23
  • 200.136.0.0/20
  • 200.136.49.0/24
  • 200.136.52.0/23
  • 200.136.54.0/24
  • 200.144.48.0/20
  • 200.144.72.0/23
  • 200.144.160.0/21
  • 200.144.168.0/22
  • 200.144.172.0/23
  • 200.144.174.0/24
  • 200.144.175.0/24
  • 200.144.176.0/20
  • 200.144.192.0/20
  • 200.144.208.0/22
  • 200.144.212.0/24
  • 200.144.213.0/24
  • 200.144.214.0/23
  • 200.144.216.0/21
  • 200.144.224.0/20
  • 200.144.240.0/20

IPv6 prefixes

All 66 prefixes.

  • 2001:12d0::/37
  • 2001:12d0:800::/42
  • 2001:12d0:840::/48
  • 2001:12d0:841::/48
  • 2001:12d0:842::/47
  • 2001:12d0:844::/46
  • 2001:12d0:848::/45
  • 2001:12d0:850::/44
  • 2001:12d0:860::/43
  • 2001:12d0:880::/48
  • 2001:12d0:881::/48
  • 2001:12d0:882::/47
  • 2001:12d0:884::/46
  • 2001:12d0:888::/45
  • 2001:12d0:890::/44
  • 2001:12d0:8a0::/43
  • 2001:12d0:8c0::/48
  • 2001:12d0:8c1::/48
  • 2001:12d0:8c2::/47
  • 2001:12d0:8c4::/46
  • 2001:12d0:8c8::/45
  • 2001:12d0:8d0::/44
  • 2001:12d0:8e0::/43
  • 2001:12d0:900::/40
  • 2001:12d0:a00::/39
  • 2001:12d0:c00::/38
  • 2001:12d0:1000::/36
  • 2001:12d0:2000::/35
  • 2001:12d0:4000::/34
  • 2001:12d0:8000::/40
  • 2001:12d0:8100::/43
  • 2001:12d0:8120::/44
  • 2001:12d0:8130::/48
  • 2001:12d0:8131::/48
  • 2001:12d0:8132::/47
  • 2001:12d0:8134::/46
  • 2001:12d0:8138::/45
  • 2001:12d0:8140::/42
  • 2001:12d0:8180::/41
  • 2001:12d0:8200::/39
  • 2001:12d0:8400::/38
  • 2001:12d0:8800::/37
  • 2001:12d0:9000::/36
  • 2001:12d0:a000::/35
  • 2001:12d0:c000::/48
  • 2001:12d0:c001::/48
  • 2001:12d0:c002::/47
  • 2001:12d0:c004::/46
  • 2001:12d0:c008::/45
  • 2001:12d0:c010::/44
  • 2001:12d0:c020::/43
  • 2001:12d0:c040::/42
  • 2001:12d0:c080::/48
  • 2001:12d0:c081::/48
  • 2001:12d0:c082::/47
  • 2001:12d0:c084::/46
  • 2001:12d0:c088::/45
  • 2001:12d0:c090::/44
  • 2001:12d0:c0a0::/43
  • 2001:12d0:c0c0::/42
  • 2001:12d0:c100::/40
  • 2001:12d0:c200::/39
  • 2001:12d0:c400::/38
  • 2001:12d0:c800::/37
  • 2001:12d0:d000::/36
  • 2001:12d0:e000::/35

Other ASNs named UNIVERSIDADE DE SAO PAULO

1 other network uses the same organisation name; together with AS28571 they announce 162,816 IPv4 addresses.

ASNNameIPv4 addresses
AS271755AS271755 - UNIVERSIDADE DE SAO PAULO BR8,192

Similar-sized networks in Brazil

ASNNameIPv4 addresses
AS262907#21 AS262907 - BRASIL TECPAR AMIGO AVATO194,816
AS13878#22 AS13878 - Scala Data Centers185,856
AS23106#23 AS23106 - AMERICAN TOWER DO BRASIL-COMUNICACAO MULTIMIDIA LT167,936
AS28649#25 AS28649 - Desktop Sigmanet Comunicacao Multimidia SA147,456
AS10954#26 AS10954 - SERVICO FEDERAL DE PROCESSAMENTO DE DADOS - SERPRO147,456
AS15180#27 AS15180 - DIGITALSERVICES.UOL S.A.145,664

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources