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AS44259Ultahost, Inc.

United StatesRegistryRIPE NCC

As of 10th November 2026, AS44259 (Ultahost, Inc.), a network registered in the United States with RIPE NCC, originates 20 IPv4 prefixes covering 5.1k addresses. By IPv4 address space that makes it the 15,567th-largest of the 80,733 networks we see originating IPv4, and the 4,410th-largest of 18,751 in the United States. It is seen behind 4 upstream networks, most often AS6206 (Netrouting B.V.) and AS146943 (Tier 4 Cloud Services). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

20

IPv6 prefixes

0

IPv4 addresses

5.1k

IPv6 /64s

0

Upstream graph

The networks AS44259 is seen behind, one and two hops out, drawn from real AS paths.

AS44259Toward the internet core
Upstream graph for AS44259: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS44259Ultahost, Inc.This networkAS6206Netrouting B.V.AS9583Sify LimitedAS21859Zenlayer IncAS146943Tier 4 Cloud Serv…AS1299Arelion (fka. Tel…AS6453TATA Communicatio…AS2914NTT America, Inc.AS4229Zenlayer IncAS55836Reliance Jio Info…AS13335Cloudflare, Inc.

Networks observed one and two hops upstream of AS44259 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

9

adjacent networks

Upstreams
444%
Peers
556%
Downstreams
00%

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

Upstreams of AS44259
NetworkCountryRelationshipPathsVantage pts
AS6206Netrouting B.V.NLPeer85876
AS146943Tier 4 Cloud ServicesINPeer30476
AS9583Sify LimitedINPeer15276
AS21859Zenlayer IncUSPeer15176

Prefixes

The largest blocks AS44259 originates, widest first.

Largest prefixes originated by AS44259
PrefixAddressesVisibility
31.59.184.0/2425676/76
38.89.142.0/2425676/76
38.127.8.0/2425676/76
38.127.216.0/2425676/76
38.134.189.0/2425676/76
38.247.64.0/2425676/76
82.47.165.0/2425675/76
95.135.255.0/2425676/76
103.26.10.0/2425676/76
103.72.101.0/2425676/76

Routing health

How AS44259'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%20
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more95.0%19
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.0%1

Prefix sizes

IPv4 — 20 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS44259 started or stopped in this period.

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