SUBNET.IM

2001:648:2810::/48

University of Macedonia, Economic and Social SciencesAS12364

At a glance

Subnets

65,536 × /64

/48 block

Visibility

98%

61 of 62 vantage points

RPKI

Valid

Registry

RIPE NCCGR

Allocated 8th December 1999

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 2001:648:2810::/48, fanning out from AS12364 toward the vantage points that see it. Each path is written out in full beneath the graph.AS12364University of Mac…OriginAS5408National Infrastr…AS21320GEANT VerenigingAS6939Hurricane Electri…AS213151Christian ElsenAS2603NORDUnetAS51907Kanton ZugAS3356Lumen (Level 3)AS32590Valve CorporationAS132337Axclusive
  1. Amsterdam123645408213206939213151This path
  2. London, UK12364540821320260351907This path
  3. Sao Paulo12364540821320335632590This path
  4. Singapore123645408213206939132337This 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
RIPE NCC — Europe, Middle East, Central Asia
Country
Greece
Allocated
8th December 1999
Allocation block
2001:648::/29
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 2001:648:2810::/48
ROA prefixAuthorised originMax length
2001:648:2810::/48AS12364/48
2001:648::/29AS5408/48

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 2001:648:2810::/48: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.2001:648::/29AS54082001:648:2810::/…AS12364This 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 2001:648:2810::/48
PrefixAddressesOriginVisibility
2001:648::/2934.4B × /64AS5408National Infrastructures for Research and Technology S.A.61/62

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. AS1236412th 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.