SUBNET.IM

AS1640Thacker-Grigsby Communications

United StatesRegistryARINTypeEyeball

At a glance

IPv4 prefixes

18

IPv6 prefixes

0

IPv4 addresses

33.5k

IPv6 /64s

0

Upstream graph

The networks AS1640 is seen behind, one and two hops out, drawn from real AS paths.

AS1640Toward the internet core
Upstream graph for AS1640: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1640Thacker-Grigsby C…This networkAS6461Zayo BandwidthAS6939Hurricane Electri…AS7018AT&T Enterprises,…AS25645Momentum Telecom,…AS6667Elisa OyjAS32590Valve CorporationAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS60068Datacamp Limited …

Networks observed one and two hops upstream of AS1640 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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS1640
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer92754
AS6461Zayo BandwidthUSPeer37027
AS25645Momentum Telecom, Inc.USPeer1368
AS7018AT&T Enterprises, LLCUSPeer71

Prefixes

The largest blocks AS1640 originates, widest first.

Largest prefixes originated by AS1640
PrefixAddressesVisibility
208.56.128.0/198.2k80/80
68.64.112.0/204.1k80/80
69.57.96.0/204.1k80/80
76.72.192.0/204.1k80/80
69.57.96.0/212k80/80
69.57.104.0/212k80/80
199.116.152.0/212k80/80
68.64.120.0/221k80/80
76.72.200.0/221k80/80
76.72.204.0/221k80/80

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