149.50.96.0/21
At a glance
Addresses
/21 block
Visibility
25 of 80 vantage points
RPKI
Registry
USAllocated 28th January 1992
AS paths to this prefix
All pathsOne observed path, hop by hop, from the origin out to Sao Paulo.
Seen from Sao Paulo
- Peer of AS201814seen on 10 paths from 1 vantage point
- Peer of AS262355seen on 35,707 paths from 2 vantage points
PL
BROne 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, UK201814502638529This path
- Sao Paulo201814262355266213Shown above
- Singapore20181450263132337This path
- Oregon, US201814693920130This path
- Amsterdam201814502635829941051213151This 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
31%
Seen by 25 of 80 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
- ARIN — North America
- Country
- United States
- Allocated
- 28th January 1992
- Allocation block
- 149.50.0.0/16
- 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 |
|---|---|---|
| 149.50.96.0/21 | AS201814 | /21 |
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 |
|---|---|---|---|
| 149.50.96.0/20 | 4.1k | AS201814MEVSPACE sp. z o.o. | 80/80 |
| 149.50.96.0/19 | 8.2k | AS201814MEVSPACE sp. z o.o. | 80/80 |
| 149.50.0.0/15 | 131k | AS174Cogent Communications, LLC | 79/80 |
More specific announcements
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 149.50.100.0/24 | 256 | AS197455ONITO Sp. z o.o. | 80/80 |
Sibling prefixes
| Prefix | Addresses | Origin | Visibility |
|---|---|---|---|
| 149.50.104.0/21 | 2k | AS201814MEVSPACE sp. z o.o. | 25/80 |
History
- AS20181412th 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 149.50.96.0/21 in the calculator/21 reference
Routing data derived from RouteViews MRT archives and public registry data.