subnet.im

156.112.134.0/24

United States Department of Defense (DoD)AS300

At a glance

Addresses

256

/24 block

Visibility

100%

81 of 81 vantage points

RPKI

No ROA

Registry

ARINUS

Allocated 6th January 1992

AS paths to this prefix

One real path per vantage point, fanning out from the origin. Where two reach the prefix the same way, those hops are drawn once. Open a path to follow it hop by hop.

OriginVantage points
AS path graph: 5 observed paths to 156.112.134.0/24, fanning out from AS300 toward the vantage points that see it. Each path is written out in full beneath the graph.AS300United States Dep…OriginAS27064Defense Informati…AS721United States Dep…AS3356Lumen (Level 3)AS35280F5 Networks SARLAS23673Cogetel Online, C…AS25091IP-Max SAAS8298IPng Networks GmbHAS6939Hurricane Electri…AS20130Depaul University
  1. London, UK30027064721335635280This path
  2. Sao Paulo30027064721335635280This path
  3. Singapore30027064721335623673This path
  4. Amsterdam300270647213356250918298This path
  5. Oregon, US300270647213356693920130This path

Each row is one path genuinely present in the routing table at our last snapshot, read outward from the origin to the vantage point that saw it. Open a row to follow that one path hop by hop. A heavier line in the graph means more vantage points reach the prefix that same way.

Route visibility

100%

Seen by 81 of 81 full-feed vantage points

Globally propagated

Observed at 5 of our collectors.

What this percentage counts

The denominator counts only full-feed peers — peers carrying a substantially complete routing table at the moment of the snapshot. IXP route-server peers usually feed partial tables and are excluded, because including them would make a normally propagated prefix look as though half the internet could not see it.

It measures how widely an announcement has spread across the networks we can observe. It says nothing about whether the prefix is reachable from any particular place, or how it performs.

Registry and RPKI

RIR
ARIN — North America
Country
United States
Allocated
6th January 1992
Allocation block
156.112.0.0/15
Status
allocated
Origin validation
No ROA

No ROA covers this prefix, so RPKI has nothing to say about it either way. This is still the common case for a large share of the routing table.

Prefix hierarchy

Announcements above, below and beside this one in the real routing table.

Covering announcements

No less specific announcement covers this prefix.

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

Prefixes of the same length sharing a parent block with 156.112.134.0/24
PrefixAddressesOriginVisibility
156.112.135.0/24256AS27066United States Department of Defense (DoD)81/81

History

  1. AS30012th August 2026 — present
Why these dates start where they do

A first-seen date is the first time we saw that origin, not the first time it appeared in BGP. Our history is forward-only with no backfill, so it says nothing about the period before we started collecting — treat the earliest dates with suspicion.

Open 156.112.134.0/24 in the calculator/24 reference

Routing data derived from RouteViews MRT archives and public registry data.