AS263990 FASTNET COMUNICACAO EIRELI - ME

AS263990 - FASTNET COMUNICACAO EIRELI - ME · registered in Brazil

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in Brazil#2,550largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#31,181of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)17 prefixes

CountryBrazil8,771 ASNs registered there

Open AS263990 in ASN lookup Look up an IP in this network (143.0.16.1) All networks in Brazil

IPv4 prefixes

All 1 prefix, in address order.

143.0.16.0/22

IPv6 prefixes

All 17 prefixes.

2804:28f8::/34
2804:28f8:4000::/36
2804:28f8:5000::/48
2804:28f8:5001::/48
2804:28f8:5002::/47
2804:28f8:5004::/46
2804:28f8:5008::/45
2804:28f8:5010::/44
2804:28f8:5020::/43
2804:28f8:5040::/42
2804:28f8:5080::/41
2804:28f8:5100::/40
2804:28f8:5200::/39
2804:28f8:5400::/38
2804:28f8:5800::/37
2804:28f8:6000::/35
2804:28f8:8000::/33

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS263987#2547 AS263987 - E. DA SILVA PROVEDORES DE TELECOMUNICACOES EIRELI1,024

AS263988#2548 AS263988 - NET BARRA1,024

AS263989#2549 AS263989 - GIGAREDE TECNOLOGIA DA INFORMACAO LTDA - ME1,024

AS263992#2551 AS263992 - TD Telecom1,024

AS263993#2552 AS263993 - AUTOFAST SOLUCOES EM TECNOLOGIA LTDA1,024

AS264002#2553 AS264002 - MVA TELECOM1,024

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