subnet.im

AS8796FASTNET DATA INC

United StatesRegistryARIN

As of 22nd October 2026, AS8796 (FASTNET DATA INC), a network registered in the United States with ARIN, originates 320 IPv4 prefixes covering 161k addresses and 25 IPv6 prefixes. By IPv4 address space that makes it the 1,574th-largest of the 79,663 networks we see originating IPv4, and the 452nd-largest of 18,476 in the United States. It is seen behind 10 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS2914 (NTT America, Inc.), and in front of 8 downstream networks. 17% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers, and 7 prefixes are also originated by another network.

At a glance

IPv4 prefixes

320

IPv6 prefixes

25

IPv4 addresses

161k

IPv6 /64s

1.6M

Upstream graph

The networks AS8796 is seen behind, one and two hops out, drawn from real AS paths.

AS8796Toward the internet core
Upstream graph for AS8796: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8796FASTNET DATA INCThis networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3223Voxility LLPAS6939Hurricane Electri…AS49544i3D.net B.VAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS215859Hetzner Cloud - S…AS3356Lumen (Level 3)AS20130Depaul UniversityAS132337Axclusive

Networks observed one and two hops upstream of AS8796 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

66

adjacent networks

Upstreams
1015%
Peers
4873%
Downstreams
812%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS8796
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer27,137137
AS2914NTT America, Inc.USPeer14,84976
AS3223Voxility LLPGBPeer2,31077
AS6939Hurricane Electric LLCUSPeer1,53616
AS49544i3D.net B.VNLPeer5292
AS4775Globe TelecomsPHPeer5262
AS58511Swoop (Anycast Global Backbone)AUPeer5252
AS24516Virtutel Pty LtdAUPeer5252
AS7195EdgeUnoCOPeer5242
AS24482SG.GSSGPeer5242

Prefixes

All 345

The largest blocks AS8796 originates, widest first.

Largest prefixes originated by AS8796
PrefixAddressesVisibility
154.205.192.0/204.1k77/77
154.205.208.0/204.1k77/77
38.49.0.0/212k77/77
38.49.8.0/212k77/77
38.49.16.0/212k77/77
38.55.0.0/212k77/77
38.55.8.0/212k77/77
38.55.24.0/212k77/77
38.55.32.0/212k77/77
38.55.40.0/212k77/77

Routing health

How AS8796's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid17.1%59
  • Invalid0.3%1
  • No ROA82.6%285

Propagation

  • Globally propagated90% of full-feed peers or more98.3%339
  • Partially propagated40% to 90%0.9%3
  • Seen by few peersUnder 40%0.9%3

Prefix sizes

IPv4 — 320 prefixes

IPv6 — 25 prefixes

  • /4865.5k × /64100.0%25

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Announced192.6.121.0/2422nd Oct 2026
  • Announced157.254.205.0/2422nd Oct 2026
  • Withdrawn192.6.121.0/2422nd Oct 2026
  • Withdrawn166.0.97.0/2422nd Oct 2026
  • Withdrawn166.1.218.0/2422nd Oct 2026
  • Announced192.6.120.0/2422nd Oct 2026
  • Withdrawn157.254.205.0/2422nd Oct 2026
  • Announced166.0.97.0/2420th Oct 2026
  • Withdrawn166.0.100.0/2420th Oct 2026
  • Announced166.1.232.0/2420th Oct 2026
  • Withdrawn192.6.120.0/2420th Oct 2026
  • Announced192.6.121.0/2420th Oct 2026

76 announced and 76 withdrawn in all; the most recent are shown.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.