subnet.im

AS399852HDD Broadband Inc.

United StatesRegistryARIN

As of 25th October 2026, AS399852 (HDD Broadband Inc.), a network registered in the United States with ARIN, originates 3 IPv4 prefixes covering 1.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 31,119th-largest of the 79,683 networks we see originating IPv4, and the 7,126th-largest of 18,494 in the United States. It is seen behind 2 upstream networks, most often AS33363 (Charter Communications, Inc) and AS33623 (Hayneville Telephone Company). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

1.5k

IPv6 /64s

268M

Upstream graph

The networks AS399852 is seen behind, one and two hops out, drawn from real AS paths.

AS399852Toward the internet core
Upstream graph for AS399852: 4 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399852HDD Broadband Inc.This networkAS33363Charter Communica…AS33623Hayneville Teleph…AS7843Spectrum (Charter)AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS399852 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS399852
NetworkCountryRelationshipPathsVantage pts
AS33363Charter Communications, IncUSPeer181103
AS33623Hayneville Telephone CompanyUSPeer11037

Prefixes

The largest blocks AS399852 originates, widest first.

Largest prefixes originated by AS399852
PrefixAddressesVisibility
209.112.68.0/221k76/76
45.59.139.0/2425676/76
198.62.196.0/2425676/76
2602:fc7c::/36268M × /6463/63

Routing health

How AS399852'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%4

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /36268M × /64100.0%1

Recent changes

Announcements that started or stopped since 26th Sept 2026.

No announcement by AS399852 started or stopped in this period.

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