45.248.8.0/22
China Telecom Yangzhou IDC NetworkAS137697
Announced by more than one origin AS (MOAS).
AS133033 is not currently observed originating this prefix. The origins we do see are listed above.
At a glance
Addresses
/22 block
Visibility
50 of 81 vantage points
RPKI
Registry
CNAllocated 29th April 2016
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Singapore.
Seen from Singapore
- Peer of AS137697seen on 16,569 paths from 144 vantage points
- Peer of AS4134seen on 26,081 paths from 3 vantage points
- Peer of AS4766seen on 68,670 paths from 2 vantage points
KR
SGOne 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
- Amsterdam1376974134250918298This path
- London, UK624683223129935280This path
- Sao Paulo624683223291435280This path
- Singapore13769741344766132337Shown above
- Oregon, US1376974134693920130This 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
62%
Seen by 50 of 81 full-feed vantage points
Partially propagatedObserved 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
- APNIC — Asia-Pacific
- Country
- China
- Allocated
- 29th April 2016
- Allocation block
- 45.248.8.0/22
- Status
- allocated
- Origin validation
- Valid
A ROA exists that authorises this origin AS to announce this prefix at this length.
Prefix hierarchy
Announcements above, below and beside this one in the real routing table.
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
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 45.248.8.0/23 | 512 | AS62468VpsQuan L.L.C. | 15/81 |
| 45.248.10.0/23 | 512 | AS62468VpsQuan L.L.C. | 16/81 |
Sibling prefixes
No prefix of the same length in the same parent block is announced.
History
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 45.248.8.0/22 in the calculator/22 reference
Routing data derived from RouteViews MRT archives and public registry data.