45.71.166.0/23
At a glance
Addresses
/23 block
Visibility
80 of 80 vantage points
RPKI
Registry
BRAllocated 27th September 2017
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Oregon, US.
Seen from Oregon, US
- Peer of AS267621seen on 270 paths from 39 vantage points
- Peer of AS267973seen on 739 paths from 81 vantage points
- Peer of AS8167seen on 174,578 paths from 142 vantage points
- Peer of AS52320seen on 213,520 paths from 71 vantage points
- Peer of AS6939seen on 975,334 paths from 1 vantage point
CO
USOne 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
- Sao Paulo267621266213This path
- Singapore267621271253132337This path
- London, UK26762127125367628529This path
- Amsterdam2676212679738167523206939213151This path
- Oregon, US267621267973816752320693920130Shown above
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
100%
Seen by 80 of 80 full-feed vantage points
Globally 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
- LACNIC — Latin America and the Caribbean
- Country
- Brazil
- Allocated
- 27th September 2017
- Allocation block
- 45.71.164.0/22
- Status
- allocated
- Origin validation
- No ROA
No ROA covers this prefix, so RPKI has nothing to say about it either way. This is still the common case for a large share of the routing table.
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 |
|---|---|---|---|
| 45.71.164.0/22 | 1k | AS267621IFIBER TELECOM | 80/80 |
More specific announcements
Nothing inside this block is announced separately.
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 45.71.164.0/23 | 512 | AS267621IFIBER TELECOM | 80/80 |
History
- AS26762112th 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.
Open 45.71.166.0/23 in the calculator/23 reference
Routing data derived from RouteViews MRT archives and public registry data.