subnet.im

AS399353Netafy, Inc.

United StatesRegistryARIN

As of 11th November 2026, AS399353 (Netafy, Inc.), a network registered in the United States with ARIN, originates 4 IPv4 prefixes covering 2.6k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 23,460th-largest of the 80,747 networks we see originating IPv4, and the 5,888th-largest of 18,752 in the United States. It is seen behind 1 upstream network, most often AS13977 (Fidium). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

1

IPv4 addresses

2.6k

IPv6 /64s

16.8M

Upstream graph

The networks AS399353 is seen behind, one and two hops out, drawn from real AS paths.

AS399353Toward the internet core
Upstream graph for AS399353: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399353Netafy, Inc.This networkAS13977FidiumAS174Cogent Communicat…AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS399353 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

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

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

Upstreams of AS399353
NetworkCountryRelationshipPathsVantage pts
AS13977FidiumUSPeer357132

Prefixes

The largest blocks AS399353 originates, widest first.

Largest prefixes originated by AS399353
PrefixAddressesVisibility
23.246.180.0/221k75/76
199.21.100.0/221k75/76
199.21.102.0/2425675/76
199.21.103.0/2425675/76
2602:f94e::/4016.8M × /6457/63

Routing health

How AS399353'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

  • Valid100.0%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 1 prefixes

  • /4016.8M × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn38.147.222.0/2422nd Oct 2026
  • Withdrawn38.147.223.0/2422nd Oct 2026

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