asn.dev

Autonomous system

AS207550 OCLAYER

Unclassified RIPE

IPv4 addresses 12.29K 18 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly HK
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Oclayer

Hong Kong · AI-generated

mobile isp hk leased

OCLAYER is operated by Oclayer Limited.

What it's used for

  • The address space carries mobile and leased infrastructure, evidenced by netnames LTE-MOBILE and NGNNET, and reverse DNS entries pointing to telecom.tw (e.g., 187-79-210-0.TW-TTT.telecom.tw).
  • The AS announces 34,816 IPv4 addresses across 109 prefixes, with only 4 observed neighbours, indicating an access or eyeball network role rather than transit.
  • Traffic from this AS consists of mobile subscriber data and leased bandwidth from third-party providers, including NTT America and Chinese carriers.

Notable

  • Registrants for the largest prefixes include TWNIC ROLE-SDCL-TW for LTE-MOBILE blocks, NTT America, Inc. for NTTA-206-184 and NTTA-199-236, and IRT-NGNNET-CN for NGNNET blocks, indicating the AS aggregates space from multiple upstream or partner networks.
  • The inventory is a mix of /21, /22, and /23 blocks, with the largest being 187.79.208.0/21, and all announced blocks are located in Hong Kong.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS134823Sky Digital Co., Ltd.1,767
AS21859Zenlayer Inc639
AS17497Liasail Global Hongkong Limited472
AS214432Zhilian Technology CO., LTD.101

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 18 prefixes · 12.29K addresses IPv6 0 prefixes

CountryNamePrefixes
HKHong Kong18

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS207550
Registry name
OCLAYER
Registrant
mnt-tw-sky-digital-1
Abuse contact
info@oclayer.com
Registered
2025-10-09
Last changed
2026-02-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
35% valid · 55 valid, 0 with no ROA 101 RPKI-invalid
ROAs
88 authorising AS207550
ASPA
no ASPA record
IRR
35% registered · 55 of 156 announcements
Route objects
80 naming AS207550

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 445 networks and 1,817 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check