37.237.31.0/24
At a glance
Addresses
/24 block
Visibility
11 of 76 vantage points
RPKI
Registry
AEAllocated 13th April 2012
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to London, UK.
Seen from London, UK
- Peer of AS139341seen on 11 paths from 11 vantage points
- Peer of AS199739seen on 11,993 paths from 139 vantage points
- Peer of AS208293seen on 81,933 paths from 139 vantage points
- Peer of AS60051seen on 824 paths from 2 vantage points
SG
IQOne 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
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
14%
Seen by 11 of 76 full-feed vantage points
Seen by few vantage pointsObserved 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
- RIPE NCC — Europe, Middle East, Central Asia
- Country
- United Arab Emirates
- Allocated
- 13th April 2012
- Allocation block
- 37.236.0.0/14
- Status
- allocated
- Origin validation
- Invalid
A ROA covers this prefix but does not authorise this origin AS at this prefix length. That is either a misconfiguration or a hijack, and many networks will drop the route.
ROAs covering this prefix
| ROA prefix | Authorised origin | Max length |
|---|---|---|
| 37.237.31.0/24 | AS19905 | /24 |
| 37.237.31.0/24 | AS199739 | /24 |
| 37.237.31.0/24 | AS203214 | /24 |
| 37.237.31.0/24 | AS50710 | /24 |
| 37.237.30.0/23 | AS199739 | /23 |
| 37.237.30.0/23 | AS203214 | /23 |
| 37.237.30.0/23 | AS50710 | /23 |
| 37.237.28.0/22 | AS199739 | /22 |
| 37.237.28.0/22 | AS203214 | /22 |
| 37.237.28.0/22 | AS50710 | /22 |
| 37.237.24.0/21 | AS199739 | /21 |
| 37.237.24.0/21 | AS203214 | /21 |
| 37.237.24.0/21 | AS50710 | /21 |
| 37.237.16.0/20 | AS199739 | /20 |
| 37.237.16.0/20 | AS203214 | /20 |
| 37.237.16.0/20 | AS50710 | /20 |
| 37.237.0.0/19 | AS199739 | /19 |
| 37.237.0.0/19 | AS203214 | /19 |
| 37.237.0.0/19 | AS50710 | /19 |
| 37.237.0.0/18 | AS199739 | /18 |
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
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 37.237.0.0/19 | 8.2k | AS199739Earthlink Telecommunications Equipment Trading & Services DMCC | 76/76 |
| 37.237.0.0/16 | 65.5k | AS203214Hulum Almustakbal Company | 76/76 |
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
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 37.237.31.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.