subnet.im

AS53845Broadband Dynamics, LLC

United StatesRegistryARIN

As of 24th October 2026, AS53845 (Broadband Dynamics, LLC), a network registered in the United States with ARIN, originates 9 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,117th-largest of the 79,671 networks we see originating IPv4, and the 6,051st-largest of 18,487 in the United States. It is seen behind 8 upstream networks, most often AS3257 (GTT Communications Inc.) and AS13768 (Aptum Technologies), and in front of 1 downstream network. 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

9

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS53845 is seen behind, one and two hops out, drawn from real AS paths.

AS53845Toward the internet core
Upstream graph for AS53845: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS53845Broadband Dynamic…This networkAS174Cogent Communicat…AS812Rogers Communicat…AS3257GTT Communication…AS13739Datacenter IP, LLCAS13768Aptum TechnologiesAS151326DCConnect Communi…AS1299Arelion (fka. Tel…AS6461Zayo BandwidthAS6667Elisa OyjAS398465Rackdog LLC

Networks observed one and two hops upstream of AS53845 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
838%
Peers
1257%
Downstreams
15%

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

Upstreams of AS53845
NetworkCountryRelationshipPathsVantage pts
AS3257GTT Communications Inc.USPeer28366
AS13768Aptum TechnologiesCAPeer12675
AS13739Datacenter IP, LLCUSPeer11470
AS812Rogers Communications Canada Inc.CAPeer7676
AS174Cogent Communications, LLCUSPeer7575
AS2914NTT America, Inc.USPeer7335
AS209Lumen (ex. Qwest)USPeer4616
AS3356Lumen (Level 3)USPeer4120

Prefixes

The largest blocks AS53845 originates, widest first.

Largest prefixes originated by AS53845
PrefixAddressesVisibility
8.23.225.0/2425676/76
8.26.78.0/2425676/76
8.26.79.0/2425676/76
8.37.87.0/2425676/76
8.38.41.0/2425676/76
8.41.59.0/2425676/76
38.96.222.0/2425675/76
69.172.251.0/2425676/76
216.162.207.0/2425676/76

Routing health

How AS53845'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%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

  • Announced38.96.222.0/2415th Oct 2026
  • Withdrawn38.96.222.0/2415th Oct 2026
  • Withdrawn208.110.154.0/2412th Oct 2026

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