AS11844 — Empresa Catarinense de Tecnologia em Telecom. Ltda

Network type: residential

AS11844 announces 3 IPv4 prefixes covering 18,432 addresses and 1 IPv6 prefixes.

About this network

AS11844 is Empresa Catarinense de Tecnologia em Telecomunicações Ltda, the Santa Catarina operator that trades as Olé Telecom / Olé Fibra, based in São José in the Greater Florianópolis area and serving both homes and businesses.

What it's used for

• Regional broadband access in southern Brazil. RIS observes 14 IPv4 prefixes covering about 18,400 addresses plus IPv6 from 2804:1c::/32, with 27 observed neighbours. A modest address pool with a couple of dozen neighbours is a regional ISP that peers locally (Brazil's IX.br fabrics make that cheap) rather than a transit carrier.
• The reverse DNS is where the role becomes unambiguous. Sampled addresses land on dyn.oletelecom.com.br dynamic pools, generic host-N.… names under freefone.com.br, and corporate mail and relay hosts under ole.net.br. Those are subscriber pools and the operator's own service hosts.

Notable

• Every prefix that resolved registers to the same company under its LACNIC identifiers, and the rest of the lookups simply failed, which is not a clearance either way but leaves no third-party registrant anywhere in the inventory. Self-registered space with first-party subscriber rDNS is a real operator, not a leasing front.
• The rDNS carries more than one brand (oletelecom, freefone, wavesystem), which typically reflects services or small networks folded into the same operator over time rather than unrelated tenants.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 189.85.160.0/19
• 200.188.224.0/19
• 200.194.232.0/21
• 2804:1c::/32

Upstream networks

• AS267469 W8 Telecom Ltda - ME
• AS14840 BR.Digital Telecom
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS35280 F5 Networks SARL
• AS37721 Virtual Technologies & Solutions

Adjacent networks

• AS267469 W8 Telecom Ltda - ME
• AS14840 BR.Digital Telecom
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS35280 F5 Networks SARL
• AS37721 Virtual Technologies & Solutions

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Florianópolis — Florianópolis, Brazil