subnet.im

AS4307SOUTH VALLEY INTERNET, INC.

United StatesRegistryARIN

As of 11th November 2026, AS4307 (SOUTH VALLEY INTERNET, INC.), a network registered in the United States with ARIN, originates 29 IPv4 prefixes covering 41.7k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,875th-largest of the 80,743 networks we see originating IPv4, and the 1,713th-largest of 18,754 in the United States. It is seen behind 3 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS7018 (AT&T Enterprises, LLC). 30% of its announcements have a valid RPKI ROA; 20 are RPKI-invalid. 30% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

29

IPv6 prefixes

1

IPv4 addresses

41.7k

IPv6 /64s

4.3B

Upstream graph

The networks AS4307 is seen behind, one and two hops out, drawn from real AS paths.

AS4307Toward the internet core
Upstream graph for AS4307: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4307SOUTH VALLEY INTE…This networkAS6939Hurricane Electri…AS7018AT&T Enterprises,…AS22516Charter Communica…AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS7843Spectrum (Charter)AS20115Spectrum (Charter)

Networks observed one and two hops upstream of AS4307 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS4307
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer603137
AS7018AT&T Enterprises, LLCUSPeer7776
AS22516Charter Communications LLCUSPeer116

Prefixes

All 30

The largest blocks AS4307 originates, widest first.

Largest prefixes originated by AS4307
PrefixAddressesVisibility
216.139.0.0/1816.4k1/76
216.139.0.0/198.2k76/76
216.139.32.0/204.1k76/76
65.111.224.0/212k76/76
216.139.48.0/212k76/76
216.139.12.0/221k1/76
216.139.56.0/221k76/76
216.139.4.0/235121/76
216.139.14.0/235121/76
216.139.24.0/235121/76

Routing health

How AS4307'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

  • Valid30.0%9
  • Invalid66.7%20
  • No ROA3.3%1

Propagation

  • Globally propagated90% of full-feed peers or more30.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%70.0%21

Prefix sizes

IPv4 — 29 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

21 announced and 0 withdrawn in all; the most recent are shown.

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