SUBNET.IM

154.0.187.0/24

Airtel Gabon S.AAS37616

Airtel Rwanda LtdAS327708

Announced by more than one origin AS (MOAS).

At a glance

Addresses

256

/24 block

Visibility

59%

47 of 80 vantage points

RPKI

No ROA

Registry

AFRINICGA

Allocated 30th August 2013

AS paths to this prefix

All paths

One observed path, hop by hop, from the origin out to Singapore.

OriginVantage point · Singapore
One AS path to 154.0.187.0/24 as seen from Singapore, read outward from the origin: AS37616 → AS327708 → AS37662 → AS132337. Each hop is listed with its network name beneath the graph.AS37616Airtel Gabon S.AOriginAS327708Airtel Rwanda LtdAS37662West Indian Ocean…AS132337Axclusive

Seen from Singapore

  1. Peer of AS37616seen on 1,275 paths from 80 vantage points
  2. Peer of AS327708seen on 10,166 paths from 142 vantage points
  3. Peer of AS37662seen on 3,474 paths from 2 vantage points
  4. 4AS132337AxclusiveSGVantage point

One path, hop by hop, from the origin outward to the vantage point that saw it. Counts beside each step are how often we see that pair adjacent anywhere in the table, not how often this path was used — BGP carries no traffic figures.

Every path we see

  1. London, UK32770817464538529This path
  2. Singapore3761632770837662132337Shown above
  3. Amsterdam37616327708376626939213151This path
  4. Sao Paulo37616327708376626939266213This path
  5. Oregon, US32770817432572335220130This 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

59%

Seen by 47 of 80 full-feed vantage points

Partially 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
AFRINIC — Africa
Country
Gabon
Allocated
30th August 2013
Allocation block
154.0.176.0/20
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.

CoveringMore specific
Prefix hierarchy for 154.0.187.0/24: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.154.0.184.0/21AS37616154.0.176.0/20AS37616154.0.187.0/24AS37616This prefix154.0.186.0/24AS37616

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 154.0.187.0/24
PrefixAddressesOriginVisibility
154.0.184.0/212kAS37616Airtel Gabon S.A79/80
154.0.176.0/204.1kAS37616Airtel Gabon S.A80/80

More specific announcements

Nothing inside this block is announced separately.

Sibling prefixes

Prefixes of the same length sharing a parent block with 154.0.187.0/24
PrefixAddressesOriginVisibility
154.0.186.0/24256AS37616Airtel Gabon S.A80/80

History

  1. AS32770812th August 2026 present
  2. AS3761612th 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 154.0.187.0/24 in the calculator/24 reference

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