SUBNET.IM

207.173.134.0/23

At a glance

Addresses

512

/23 block

Visibility

6%

5 of 80 vantage points

RPKI

Invalid

Registry

ARINUS

Allocated 5th August 1996

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: 1 observed path to 207.173.134.0/23, fanning out from AS11620 toward the vantage points that see it. Each path is written out in full beneath the graph.AS11620Succeed.NetOriginAS11404Wave BroadbandAS4766Korea TelecomAS132337Axclusive
  1. Singapore11620114044766132337This 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.

Route visibility

6%

Seen by 5 of 80 full-feed vantage points

Seen by few vantage points

Observed at 4 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
5th August 1996
Allocation block
207.173.0.0/16
Status
allocated
Origin validation
Invalid

A ROA covers this prefix but does not authorise this origin AS at this prefix length. That is either a misconfiguration or a hijack, and many networks will drop the route.

ROAs covering this prefix

Route Origin Authorisations covering 207.173.134.0/23
ROA prefixAuthorised originMax length
207.173.128.0/20AS11620/20
207.173.0.0/16AS7385/24

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 207.173.134.0/23: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.207.173.128.0/20AS11620207.173.0.0/16AS7385207.173.134.0/23AS11620This prefix207.173.132.0/23AS11620

Left to right is specificity: a shorter mask covering more address space, then this prefix, then the announcements carved out inside it. Only the first few of each are drawn — the tables below list them all.

Covering announcements

Announcements that contain 207.173.134.0/23
PrefixAddressesOriginVisibility
207.173.128.0/204.1kAS11620Succeed.Net79/80
207.173.0.0/1665.5kAS7385Zayo (fka Allstream)80/80

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

Prefixes of the same length sharing a parent block with 207.173.134.0/23
PrefixAddressesOriginVisibility
207.173.132.0/23512AS11620Succeed.Net5/80

History

  1. AS1162012th 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 207.173.134.0/23 in the calculator/23 reference

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