subnet.im

154.12.89.0/24

Not announced at this prefix length

We do not see 154.12.89.0/24 announced as its own route. The most specific announcement covering it is 154.12.88.0/23, originated by AS401696 (cognetcloud INC). Traffic to addresses in this block follows that route.

At a glance

Addresses

256

/24 block

Visibility

Unknown

RPKI

Unknown

Registry

ARINUS

Allocated 5th February 1992

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
ARIN — North America
Country
United States
Allocated
5th February 1992
Allocation block
154.12.0.0/16
Status
allocated
Origin validation
Unknown

Prefix hierarchy

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

CoveringMore specific
Prefix hierarchy for 154.12.89.0/24: the announcements covering it on the left, the announcements inside it on the right. Every prefix drawn is also listed in the tables below.154.12.88.0/23AS401696154.12.88.0/22AS401696154.12.0.0/15AS174154.12.89.0/24This 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 154.12.89.0/24
PrefixAddressesOriginVisibility
154.12.88.0/23512AS401696cognetcloud INC1/76
154.12.88.0/221kAS401696cognetcloud INC76/76
154.12.0.0/15131kAS174Cogent Communications, LLC75/76

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. AS40170110th November 2026 — 10th November 2026
  2. AS4017017th November 2026 — 7th November 2026
  3. AS4017011st November 2026 — 1st November 2026
  4. AS40170131st October 2026 — 31st October 2026
  5. AS40170126th October 2026 — 26th October 2026
  6. AS40170125th October 2026 — 25th October 2026
  7. AS3587624th October 2026 — 24th October 2026
  8. AS40169622nd October 2026 — 24th 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 154.12.89.0/24 in the calculator/24 reference

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