ResearchIRR · TC

AS271749:AS-UPSTREAMS as-set containing AS271749 upstream providers

An as-set registered in TC, maintained by MAINT-AS271749. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.

Members

What AS271749:AS-UPSTREAMS lists

1 AS and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS263966 AS263966
Expanded

Every AS it reaches

What a filter built from AS271749:AS-UPSTREAMS would let in: 1 ASes.

Show the 1 ASes
AS263966
Prefixes

What AS271749:AS-UPSTREAMS covers

Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS271749:AS-UPSTREAMS (with bgpq4, say) would allow. 24 IPv4 and 3 IPv6. Every one is in the IRR API.

24 IPv4 prefixes
138.255.108.0/22138.255.108.0/23138.255.108.0/24138.255.109.0/24138.255.110.0/23138.255.110.0/24138.255.111.0/24143.137.116.0/22190.89.0.0/22190.89.0.0/23190.89.0.0/24190.89.1.0/24190.89.2.0/23190.89.2.0/24190.89.3.0/24209.14.18.0/24209.14.230.0/2445.229.220.0/2245.229.220.0/2345.229.220.0/2445.229.221.0/2445.229.222.0/2345.229.222.0/2445.229.223.0/24
3 IPv6 prefixes
2804:2884:8000::/332804:2884::/322804:2884::/33
Registries

Each registry’s copy

TC1 membersas-set containing AS271749 upstream providers
Maintained byMAINT-AS271749
Last modified2026-04-30T18:31:13Z
MembersAS263966
mbrs-by-refN
Tools

Check AS271749:AS-UPSTREAMS live

IRR API, with prefixes