AS27947

Data as of 2026-08-23
Handle
Cluster stats
Netblocks1,635 · 534,016 IPv4 addresses
IPv6 749 prefixes (largest 2800:2a0::/32)
Registered in EC (868) · SC (9) · United States (8) · Hong Kong (1)
Cluster ID226908947
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution RIR handle
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

4 weekly snapshots · JSON
1,635 +17 netblocks since 2026-07-26
2026-07-26 peak 1,635 2026-08-23

IP Ranges (1,635)

showing 50 of 1,635 — see all⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
23.219.144.0/22 AS27947 BGP ANNOUNCED ● medium
45.194.29.0/24 AS27947 BGP ANNOUNCED ● medium
45.195.132.0/24 AS27947 BGP ANNOUNCED ● medium
64.46.64.0/20 AS27947 BGP ANNOUNCED ● medium
64.46.64.0/19 AS27947 BGP ANNOUNCED ● medium
64.46.80.0/20 AS27947 BGP ANNOUNCED ● medium
69.65.128.0/19 AS27947 BGP ANNOUNCED ● medium
69.65.128.0/20 AS27947 BGP ANNOUNCED ● medium
69.65.144.0/20 AS27947 BGP ANNOUNCED ● medium
154.197.111.0/24 AS27947 BGP ANNOUNCED ● medium
154.198.172.0/24 AS27947 BGP ANNOUNCED ● medium
156.239.192.0/22 AS27947 BGP ANNOUNCED ● medium
156.239.192.0/24 AS27947 BGP ANNOUNCED ● medium
156.239.193.0/24 AS27947 BGP ANNOUNCED ● medium
156.239.194.0/24 AS27947 BGP ANNOUNCED ● medium
156.239.195.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.0.0/16 AS27947 BGP ANNOUNCED ● medium
157.100.0.0/20 AS27947 BGP ANNOUNCED ● medium
157.100.0.0/19 AS27947 BGP ANNOUNCED ● medium
157.100.0.0/18 AS27947 BGP ANNOUNCED ● medium
157.100.1.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.3.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.4.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.11.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.13.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.16.0/20 AS27947 BGP ANNOUNCED ● medium
157.100.19.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.22.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.29.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.32.0/19 AS27947 BGP ANNOUNCED ● medium
157.100.32.0/20 AS27947 BGP ANNOUNCED ● medium
157.100.34.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.36.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.37.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.39.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.40.0/23 AS27947 BGP ANNOUNCED ● medium
157.100.40.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.41.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.44.0/23 AS27947 BGP ANNOUNCED ● medium
157.100.47.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.48.0/20 AS27947 BGP ANNOUNCED ● medium
157.100.64.0/18 AS27947 BGP ANNOUNCED ● medium
157.100.64.0/19 AS27947 BGP ANNOUNCED ● medium
157.100.64.0/20 AS27947 BGP ANNOUNCED ● medium
157.100.64.0/22 AS27947 BGP ANNOUNCED ● medium
157.100.64.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.65.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.66.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.67.0/24 AS27947 BGP ANNOUNCED ● medium
157.100.74.0/24 AS27947 BGP ANNOUNCED ● medium

IPv6 ranges (749)

showing the 15 largest allocations

Customer-delegated space

how is this classified?
Unclassified 1,585 (96.9%)
Customer access pools 50 (3.1%)

Network trust

what's this?
RPKI hygiene: A how networks compare →
99.6% of checked blocks have valid RPKI ROA coverage (1,629 of 1,635)
Wholesale/transit re-announcements (893)

These blocks are registered to AS27947 but cryptographically authorized across 11 different networks — typical for a large wholesale or transit carrier whose address space is substantially re-announced by downstream customers under their own ASNs, not individually noteworthy.

2800:2a0::/32 /32 authorized for AS19169 — AS19169
2800:2a0::/34 /34 authorized for AS19169 — AS19169
2800:2a0:4000::/34 /34 authorized for AS19169 — AS19169
2800:2a0:8000::/34 /34 authorized for AS19169 — AS19169
2800:2a0:c000::/34 /34 authorized for AS19169 — AS19169
2800:68:16::/48 /48 authorized for AS20080 — Florida International University
2800:68:1d::/48 /48 authorized for AS22724 — AS22724
2800:68:21::/48 /48 authorized for AS20080 — Florida International University
2800:68:22::/48 /48 authorized for AS20080 — Florida International University
2800:68:37::/48 /48 authorized for AS20080 — Florida International University
2800:68:39::/48 /48 authorized for AS20080 — Florida International University
2800:68:3a::/48 /48 authorized for AS20080 — Florida International University
2800:68:3c::/48 /48 authorized for AS20080 — Florida International University
2800:68:40::/48 /48 authorized for AS20080 — Florida International University
2800:68:42::/48 /48 authorized for AS20080 — Florida International University
+878 more — see the REST API

NIC Handles

AS27947 AS52257 LARUS-SERVICE-MNT MAINT-AP-PCCWG-APAC