subnet.im

39.105.0.0/16

Not announced at this prefix length

We do not see 39.105.0.0/16 announced as its own route. The most specific announcement covering it is 39.104.0.0/15, originated by AS37963 (Hangzhou Alibaba Advertising Co.,Ltd.). Traffic to addresses in this block follows that route.

At a glance

Addresses

65,536

/16 block

Visibility

Unknown

RPKI

Unknown

Registry

APNICCN

Allocated 5th April 2011

AS paths to this prefix

No AS paths are stored for this prefix. We keep the full path from one reference peer per collector rather than from every peer, so a prefix only has paths here once it has been seen by one of those peers.

Registry and RPKI

RIR
APNIC — Asia-Pacific
Country
China
Allocated
5th April 2011
Allocation block
39.104.0.0/14
Status
allocated
Origin validation
Unknown

ROAs covering this prefix

Route Origin Authorisations covering 39.105.0.0/16
ROA prefixAuthorised originMax length
39.104.0.0/14AS37963/24

Prefix hierarchy

Announcements above, below and beside this one in the real routing table.

CoveringMore specific
Prefix hierarchy for 39.105.0.0/16: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.39.104.0.0/15AS3796339.104.0.0/14AS3796339.105.0.0/16This prefix

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

Announcements that contain 39.105.0.0/16
PrefixAddressesOriginVisibility
39.104.0.0/15131kAS37963Hangzhou Alibaba Advertising Co.,Ltd.76/76
39.104.0.0/14262kAS37963Hangzhou Alibaba Advertising Co.,Ltd.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

  1. AS379636th November 2026 — 6th November 2026
  2. AS379635th November 2026 — 5th November 2026
  3. AS379633rd November 2026 — 4th November 2026
  4. AS379631st November 2026 — 2nd November 2026
  5. AS3796331st October 2026 — 1st November 2026
  6. AS3796329th October 2026 — 30th October 2026
  7. AS3796327th October 2026 — 29th October 2026
  8. AS3796319th October 2026 — 22nd October 2026
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 39.105.0.0/16 in the calculator/16 reference

Routing data derived from RouteViews MRT archives and public registry data.