157.254.27.0/24
At a glance
Addresses
/24 block
Visibility
21 of 76 vantage points
RPKI
Registry
USAllocated 8th February 1992
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Singapore.
Seen from Singapore
- Peer of AS36171seen on 42 paths from 41 vantage points
- Peer of AS25795seen on 1,041 paths from 139 vantage points
- Peer of AS29838seen on 4,077 paths from 98 vantage points
- Peer of AS1299seen on 630,107 paths from 43 vantage points
- Peer of AS3356seen on 421,631 paths from 2 vantage points
SE
KHOne 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.
Route visibility
28%
Seen by 21 of 76 full-feed vantage points
Seen by few vantage pointsObserved at 1 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
- ARIN — North America
- Country
- United States
- Allocated
- 8th February 1992
- Allocation block
- 157.254.0.0/16
- Status
- allocated
- Origin validation
- Valid
A ROA exists that authorises this origin AS to announce this prefix at this length.
ROAs covering this prefix
| ROA prefix | Authorised origin | Max length |
|---|---|---|
| 157.254.27.0/24 | AS36171 | /24 |
Prefix hierarchy
Announcements above, below and beside this one in the real routing table.
Covering announcements
No less specific announcement covers this prefix.
More specific announcements
Nothing inside this block is announced separately.
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 157.254.26.0/24 | 256 | AS199856Ping Technology Labs LTD | 76/76 |
History
- AS3617122nd September 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 157.254.27.0/24 in the calculator/24 reference
Routing data derived from RouteViews MRT archives and public registry data.