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AS393552Longmont Power & Communications

United StatesRegistryARINTypeEyeball

As of 26th September 2026, AS393552 (Longmont Power & Communications), an access network registered in the United States with ARIN, originates 26 IPv4 prefixes covering 42.2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,783rd-largest of the 79,516 networks we see originating IPv4, and the 1,678th-largest of 18,424 in the United States. It is seen behind 3 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3356 (Lumen (Level 3)), and in front of 6 downstream networks. 15% of its announcements have 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

26

IPv6 prefixes

1

IPv4 addresses

42.2k

IPv6 /64s

4.3B

Upstream graph

The networks AS393552 is seen behind, one and two hops out, drawn from real AS paths.

AS393552Toward the internet core
Upstream graph for AS393552: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS393552Longmont Power & …This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS397142City of Fort Coll…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS174Cogent Communicat…

Networks observed one and two hops upstream of AS393552 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

21

adjacent networks

Upstreams
314%
Peers
1257%
Downstreams
629%

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

Upstreams of AS393552
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,343140
AS3356Lumen (Level 3)USPeer46621
AS397142City of Fort CollinsUSPeer111

Prefixes

All 27

The largest blocks AS393552 originates, widest first.

Largest prefixes originated by AS393552
PrefixAddressesVisibility
161.97.192.0/1816.4k81/81
8.44.144.0/204.1k81/81
66.186.208.0/204.1k81/81
8.46.88.0/212k81/81
161.97.208.0/212k81/81
8.42.76.0/221k81/81
8.44.144.0/221k80/81
8.46.88.0/221k80/81
65.49.100.0/221k81/81
66.186.200.0/221k81/81

Routing health

How AS393552'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

  • Valid14.8%4
  • Invalid0.0%0
  • No ROA85.2%23

Propagation

  • Globally propagated90% of full-feed peers or more100.0%27
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 26 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS393552 started or stopped in this period.

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