subnet.im

156.238.239.0/24

At a glance

Addresses

256

/24 block

Visibility

9%

7 of 76 vantage points

RPKI

Valid

Registry

AFRINICSC

Allocated 22nd December 2015

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 156.238.239.0/24, fanning out from AS401701 toward the vantage points that see it. Each path is written out in full beneath the graph.AS401701cognetcloud INCOriginAS40779VoltNet incAS4635HKIX Route ServersAS9304HGC Global Commun…AS38623Metfone (Viettel …AS23673Cogetel Online, C…
  1. Singapore40170140779463593043862323673This 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

9%

Seen by 7 of 76 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
AFRINIC — Africa
Country
Seychelles
Allocated
22nd December 2015
Allocation block
156.224.0.0/11
Status
allocated
Origin validation
Valid

A ROA exists that authorises this origin AS to announce this prefix at this length.

ROAs covering this prefix

Route Origin Authorisations covering 156.238.239.0/24
ROA prefixAuthorised originMax length
156.238.224.0/19AS137899/24
156.238.224.0/19AS142032/24
156.238.224.0/19AS395886/24
156.238.224.0/19AS401696/24
156.238.224.0/19AS401701/24
156.238.224.0/19AS40779/24
156.238.224.0/19AS8796/24

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 156.238.239.0/24: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.156.238.236.0/22AS401696156.238.232.0/21AS401696156.238.239.0/24AS401701This prefix

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 156.238.239.0/24
PrefixAddressesOriginVisibility
156.238.236.0/221kAS401696cognetcloud INC1/76
156.238.232.0/212kAS401696cognetcloud INC76/76

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

No prefix of the same length in the same parent block is announced.

History

  1. AS4017016th November 2026 — present
  2. AS4017014th November 2026 — 5th November 2026
  3. AS4017012nd November 2026 — 2nd November 2026
  4. AS40170131st October 2026 — 31st October 2026
  5. AS40170119th October 2026 — 19th October 2026
  6. AS40170118th October 2026 — 18th October 2026
  7. AS40170117th October 2026 — 17th October 2026
  8. AS40169615th October 2026 — 16th October 2026
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 156.238.239.0/24 in the calculator/24 reference

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