AS263356 CNT Fiber

AS263356 - CNT Fiber · registered in Brazil

IPv4 addresses2,0481 prefixes · <0.001% of announced IPv4

Rank in Brazil#1,586largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#22,015of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryBrazil8,771 ASNs registered there

Open AS263356 in ASN lookup Look up an IP in this network (191.37.72.1) All networks in Brazil

IPv4 prefixes

All 1 prefix, in address order.

191.37.72.0/21

IPv6 prefixes

All 1 prefix.

2804:14e0::/32

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS263340#1583 AS263340 - CPW TELECOM LTDA2,048

AS263341#1584 AS263341 - FABIO DOS SANTOS GUERINO INFORMATICA - ME2,048

AS263355#1585 AS263355 - GTR NET COMUNICACOES EIRELI2,048

AS263359#1587 AS263359 - Cybertech Informatica LTDA2,048

AS263362#1588 AS263362 - REDE SPEEDNET TELECOM LTDA2,048

AS263363#1589 AS263363 - RADLINK TELECOMUNICACOES LTDA2,048

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