AS11816 — SERVICIO DI TELECOMUNICACION DI ARUBA SETAR N.V.

Network type: residential

AS11816 announces 45 IPv4 prefixes covering 69,376 addresses and 1 IPv6 prefixes.

About this network

AS11816 is SETAR N.V. — Servicio di Telecomunicacion di Aruba — the incumbent, wholly government-owned telecom operator of Aruba, based in Oranjestad. It is the island's full- service carrier: fixed and mobile telephony, broadband and cable TV.

What it's used for

• Retail internet access for Aruban households and businesses. The reverse DNS is decisive: virtually every sampled address across the 201.229, 181.41 and 186.189 ranges resolves under setardsl.aw. dsl names the access technology, not a customer type, but a per-address subscriber naming scheme applied uniformly across the whole estate is an eyeball network, and it matches what a national incumbent does for a living.
• RIS sees 120 IPv4 prefixes / 68,352 addresses, 1 IPv6 prefix (2800:ad0::/32), and only 3 observed neighbours. Very few peers for that much space is normal for an island incumbent: it buys transit from a small number of mainland carriers rather than peering widely.

Notable

• The v4 space is LACNIC-registered to SETAR itself and heavily deaggregated into /23s and /24s out of a handful of parent ranges — 120 prefixes covering under 70k addresses.
• One prefix stands out: 186.159.100.0/24 is registered to Telefonia Bonairiano N.V. (Telbo, the incumbent operator of Bonaire), and its rDNS resolves under cust.telbo.net. A third-party registrant would normally be worth suspicion, but this is a neighbouring Caribbean incumbent's own customer space reached through SETAR — an operator relationship between two real, findable national carriers, not brokered address space.

Interesting

• Aruba's national network reaches the rest of the world through only three observed neighbours; submarine-cable geography, not network policy, is what caps that number.

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

Announced prefixes

• 181.41.0.0/22
• 181.41.4.0/23
• 181.41.8.0/23
• 181.41.20.0/22
• 181.41.26.0/23
• 181.41.28.0/22
• 181.41.32.0/20
• 181.41.50.0/23
• 181.41.52.0/22
• 181.41.56.0/21
• 186.159.100.0/24
• 186.189.0.0/23
• 186.189.6.0/23
• 186.189.8.0/23
• 186.189.12.0/22
• 186.189.16.0/22
• 186.189.22.0/23
• 186.189.24.0/21
• 186.189.32.0/21
• 186.189.42.0/23
• 186.189.44.0/22
• 186.189.48.0/20
• 186.189.128.0/22
• 186.189.134.0/23
• 186.189.138.0/23
• 186.189.140.0/22
• 186.189.144.0/20
• 186.189.160.0/19
• 201.229.0.0/21
• 201.229.8.0/23
• 201.229.12.0/23
• 201.229.16.0/20
• 201.229.32.0/20
• 201.229.48.0/21
• 201.229.60.0/22
• 201.229.64.0/20
• 201.229.80.0/21
• 201.229.88.0/23
• 201.229.92.0/22
• 201.229.96.0/21
• 201.229.104.0/23
• 201.229.108.0/22
• 201.229.112.0/22
• 201.229.118.0/23
• 201.229.122.0/23
• 2800:ad0::/32

Upstream networks

• AS174 Cogent Communications, LLC
• AS12956 TELEFONICA GLOBAL SOLUTIONS SL

Downstream networks

• AS262164 NetPro N.V.

Adjacent networks

• AS174 Cogent Communications, LLC
• AS12956 TELEFONICA GLOBAL SOLUTIONS SL
• AS262164 NetPro N.V.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands