SUBNET.IM

72.51.113.0/24

Columbus Telecommunications (Barbados) LimitedAS14813

At a glance

Addresses

256

/24 block

Visibility

1%

1 of 80 vantage points

RPKI

Invalid

Registry

ARINBB

Allocated 10th August 2006

AS paths to this prefix

No AS paths are stored for this prefix. We keep the full path from one reference peer per collector rather than from every peer, so a prefix only has paths here once it has been seen by one of those peers.

Route visibility

1%

Seen by 1 of 80 full-feed vantage points

Seen by few vantage points

Observed at 1 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
Barbados
Allocated
10th August 2006
Allocation block
72.51.64.0/18
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 72.51.113.0/24
ROA prefixAuthorised originMax length
72.51.112.0/23AS14813/23

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 72.51.113.0/24: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.72.51.112.0/23AS1481372.51.113.0/24AS14813This prefix72.51.112.0/24AS14813

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 72.51.113.0/24
PrefixAddressesOriginVisibility
72.51.112.0/23512AS14813Columbus Telecommunications (Barbados) Limited79/80

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

Prefixes of the same length sharing a parent block with 72.51.113.0/24
PrefixAddressesOriginVisibility
72.51.112.0/24256AS14813Columbus Telecommunications (Barbados) Limited1/80

History

  1. AS1481312th 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 72.51.113.0/24 in the calculator/24 reference

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