38.3.208.0/22
At a glance
Addresses
/22 block
Visibility
80 of 80 vantage points
RPKI
Registry
USAllocated 16th April 1991
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 AS264255seen on 108 paths from 39 vantage points
- Peer of AS10429seen on 127 paths from 47 vantage points
- Peer of AS7738seen on 121,785 paths from 141 vantage points
- Peer of AS52320seen on 213,520 paths from 71 vantage points
- Peer of AS6939seen on 975,334 paths from 1 vantage point
BR
COOne 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
- London, UK2642551374098529This path
- Sao Paulo2642552639033356266213This path
- Amsterdam264255104297738523206939213151This path
- Singapore2642552639033356773852320132337This path
- Oregon, US26425510429773852320693920130Shown 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
- ARIN — North America
- Country
- United States
- Allocated
- 16th April 1991
- Allocation block
- 38.0.0.0/8
- 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 |
|---|---|---|---|
| 38.0.0.0/8 | 16.8M | AS174Cogent Communications, LLC | 78/80 |
More specific announcements
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 38.3.208.0/23 | 512 | AS264255INTERFIBRAS TELECOMUNICACOES LTDA | 19/80 |
| 38.3.210.0/23 | 512 | AS264255INTERFIBRAS TELECOMUNICACOES LTDA | 19/80 |
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 38.3.212.0/22 | 1k | AS270984ClickNet | 79/80 |
History
- AS26425512th 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 38.3.208.0/22 in the calculator/22 reference
Routing data derived from RouteViews MRT archives and public registry data.