SUBNET.IM

2c0f:f2e8::/32

Tanzania Education And Research NetworkAS37182

At a glance

Subnets

4,294,967,296 × /64

/32 block

Visibility

98%

61 of 62 vantage points

RPKI

Valid

Registry

AFRINICTZ

Allocated 1st September 2016

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: 4 observed paths to 2c0f:f2e8::/32, fanning out from AS37182 toward the vantage points that see it. Each path is written out in full beneath the graph.AS37182Tanzania Educatio…OriginAS36944Ubuntunet Allianc…AS6939Hurricane Electri…AS213151Christian ElsenAS32590Valve CorporationAS3257GTT Communication…AS9002RETN LimitedAS51907Kanton ZugAS37100SEACOM LimitedAS327708Airtel Rwanda LtdAS37662West Indian Ocean…AS132337Axclusive
  1. Amsterdam37182369446939213151This path
  2. Sao Paulo3718236944693932590This path
  3. London, UK37182369443257900251907This path
  4. Singapore371823694432573710032770837662132337This 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

98%

Seen by 61 of 62 full-feed vantage points

Globally propagated

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
AFRINIC — Africa
Country
Tanzania
Allocated
1st September 2016
Allocation block
2c0f:f2e8::/32
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 2c0f:f2e8::/32
ROA prefixAuthorised originMax length
2c0f:f2e8::/32AS37182/48

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 2c0f:f2e8::/32: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.2c0f:f2e8::/32AS37182This prefix2c0f:f2e8::/48AS37182

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

No less specific announcement covers this prefix.

More specific announcements

Announcements contained within 2c0f:f2e8::/32
PrefixAddressesOriginVisibility
2c0f:f2e8::/4865.5k × /64AS37182Tanzania Education And Research Network61/62

Sibling prefixes

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

History

  1. AS3718212th 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.

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