AS266500 SURF TELECOM S.A.

AS266500 - SURF TELECOM S.A. · registered in Brazil

IPv4 addresses2,8164 prefixes · <0.001% of announced IPv4

Rank in Brazil#1,286largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#19,262of 79,396 networks with IPv4

IPv620 x /487 prefixes

CountryBrazil8,771 ASNs registered there

Open AS266500 in ASN lookup Look up an IP in this network (170.244.196.1) All networks in Brazil

IPv4 prefixes

All 4 prefixes, in address order.

170.244.196.0/22
191.128.232.0/22
191.128.236.0/23
191.128.239.0/24

IPv6 prefixes

All 7 prefixes.

2804:38c4::/48
2804:38c4:2::/47
2804:38c4:4::/46
2804:38c4:8::/47
2804:38c4:10::/45
2804:38c4:18::/47
2804:38c4:20::/48

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS267507#1283 AS267507 - SRX TECNOLOGIA DA INFORMACAO LTDA2,816

AS272166#1284 AS272166 - GOLDEN TECHNOLOGIA LTDA - ME2,816

AS272786#1285 AS272786 - X99 INTERNET2,816

AS263162#1287 AS263162 - Sustenta Telecom Ltda2,816

AS266129#1288 AS266129 - LOCALLINK TELECOMUNICACOES LTDA - ME2,560

AS52631#1289 AS52631 - As Informatica LTDA2,560

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