ISIF OU

Data as of 2026-09-05
BGP inherited
This organisation
Netblocks141 · 6,659 IPv4 addresses
IPv6 114 prefixes (largest 2405:84c0:1000::/36)
Registered in Hong Kong (23) · United Arab Emirates (1) · Germany (1) · LT (1) · United States (1)
Record ID231517703
RegistryAPNIC
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 26 shared RIR contact/maintainer handles
Registry names 37 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

10 weekly snapshots · JSON
159 -11 netblocks since 2026-07-05
2026-07-05 peak 170 2026-08-30

IP Ranges (141)

⬇ export CSV
CIDR Org name Registry Status Confidence
163.61.161.15/32 ISIF Network PEERINGDB ASSIGNED ● high
163.61.161.16/32 ISIF Backbone Networks PEERINGDB ASSIGNED ● high
185.1.155.124/32 ISIF Network PEERINGDB ASSIGNED ● high
2401:f460:210::4743:1/128 ISIF Backbone Networks PEERINGDB ASSIGNED ● high
2401:f460:210::20:9554:1/128 ISIF Network PEERINGDB ASSIGNED ● high
2404:f4c0:f70e:1980::209:554/128 ISIF Network PEERINGDB ASSIGNED ● high
2a0a:6040:ad80::/42 ISIF-NETWORK-20231105 RIPE ASSIGNED ● high
2a0c:b641:701::20:9554:1/128 ISIF Network PEERINGDB ASSIGNED ● high
31.58.223.0/24 ISIF OU BGP ANNOUNCED ● low
45.95.212.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.1.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.2.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.4.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.4.0/22 ISIF OU BGP ANNOUNCED ● low
152.175.5.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.6.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.7.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.8.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.9.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.10.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.11.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.12.0/22 ISIF OU BGP ANNOUNCED ● low
152.175.12.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.13.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.14.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.16.0/22 ISIF OU BGP ANNOUNCED ● low
152.175.33.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.34.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.65.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.66.0/24 ISIF OU BGP ANNOUNCED ● low
152.175.97.0/24 ISIF OU BGP ANNOUNCED ● low
194.231.149.0/24 ISIF OU BGP ANNOUNCED ● low
2001:df1:4580::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:1000::/36 ISIF-NETWORK-20231101 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:2000::/36 ISIF-NETWORK-20231101 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:4000::/36 ISIF-NETWORK-20231102 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:5000::/36 ISIF-NETWORK-20231103 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:6800::/40 ISIF-NETWORK-20230307 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:6f00::/40 ISIF-NETWORK-20230101 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8000::/44 ISIF-NETWORK-IPV6-20241201 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8001::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8003::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8004::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8005::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8007::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8010::/44 ISIF-NETWORK-IPV6-20241202 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8011::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8012::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8014::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8015::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8016::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8018::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:801a::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:801b::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8020::/44 ISIF-NETWORK-IPV6-20241203 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8022::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8024::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8026::/47 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8028::/45 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8030::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8030::/44 ISIF-NETWORK-IPV6-20241204 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8031::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8032::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8033::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8034::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8035::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:803f::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8040::/44 ISIF-NETWORK-IPV6-20250801 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8040::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8046::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8047::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:804f::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8050::/44 ISIF-NETWORK-IPV6-20251101 APNIC ALLOCATED NON-PORTABLE ● low
2405:84c0:8051::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8052::/48 ISIF OU BGP ANNOUNCED ● low
2405:84c0:8054::/46 ISIF OU BGP ANNOUNCED ● low
2405:84c0:a100::/48 ISIF OU BGP ANNOUNCED ● low
2a0a:6040:ad00::/40 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0a:6040:ad00::/44 ISIF-NETWORK-20231106 RIPE ASSIGNED ● low
2a0a:6040:ad10::/44 ISIF-NETWORK-20230303 RIPE ASSIGNED ● low
2a0a:6040:ad20::/44 ISIF-NETWORK-20230301 RIPE ASSIGNED ● low
2a0a:6040:ad30::/44 ISIF-NETWORK-20230302 RIPE ASSIGNED ● low
2a0a:6040:ad40::/44 ISIF-NETWORK-20231107 RIPE ASSIGNED ● low
2a0a:6040:cb00::/40 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0b:1187:1000::/44 ISIF OU BGP ANNOUNCED ● low
2a0b:1187:2000::/44 ISIF OU BGP ANNOUNCED ● low
2a0b:1187:3000::/44 ISIF OU BGP ANNOUNCED ● low
2a0b:1187:4000::/44 ISIF OU BGP ANNOUNCED ● low
2a0b:1187:5000::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4400::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:4400::/40 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:4410::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4420::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:4430::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4440::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4450::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4460::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:4470::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:4480::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:4490::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:44a0::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:44b0::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:44c0::/44 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a0f:6284:44d0::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:44e0::/44 ISIF OU BGP ANNOUNCED ● low
2a0f:6284:44f0::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6010::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6100::/40 ISIF-NETWORK-20240401 RIPE ASSIGNED ● low
2a14:7580:6110::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6200::/40 ISIF-NETWORK-20240402 RIPE ASSIGNED ● low
2a14:7580:6210::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6300::/40 ISIF-NETWORK-20240403 RIPE ASSIGNED ● low
2a14:7580:6310::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6400::/40 ISIF-NETWORK-20240404 RIPE ASSIGNED ● low
2a14:7580:6410::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6500::/40 ISIF-NETWORK-20240405 RIPE ASSIGNED ● low
2a14:7580:6510::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6600::/40 ISIF-NETWORK-20240406 RIPE ASSIGNED ● low
2a14:7580:6610::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6700::/40 ISIF-NETWORK-20240407 RIPE ASSIGNED ● low
2a14:7580:6710::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6800::/40 ISIF-NETWORK-20240408 RIPE ASSIGNED ● low
2a14:7580:6810::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6900::/40 ISIF-NETWORK-20240409 RIPE ASSIGNED ● low
2a14:7580:6910::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6a00::/40 ISIF-NETWORK-20240410 RIPE ASSIGNED ● low
2a14:7580:6a10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6b00::/40 ISIF-NETWORK-20240411 RIPE ASSIGNED ● low
2a14:7580:6b10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6c00::/40 ISIF-NETWORK-20240412 RIPE ASSIGNED ● low
2a14:7580:6c10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6d00::/40 ISIF-NETWORK-20240413 RIPE ASSIGNED ● low
2a14:7580:6d10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6e00::/40 ISIF-NETWORK-20240414 RIPE ASSIGNED ● low
2a14:7580:6e10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7580:6f00::/40 ISIF-NETWORK-20240415 RIPE ASSIGNED ● low
2a14:7580:6f10::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7581:a000::/36 ISIF OU RIPE ALLOCATED-BY-LIR ● low
2a14:7581:a000::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7581:a100::/44 ISIF OU BGP ANNOUNCED ● low
2a14:7581:a270::/44 ISIF-NETWORK-20250903-SE RIPE ALLOCATED-BY-LIR ● low

IPv6 ranges (114)

showing the 15 largest allocations

Network trust

what's this?
RPKI hygiene: A how networks compare →
96.2% of checked blocks have valid RPKI ROA coverage (153 of 159)
Possible discrepancies (33)

These blocks are registered to ISIF OU but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2405:84c0:2000::/36 /36 authorized for AS139782 — IXPMOE Internet Exchange
2a14:7580:6100::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6200::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6300::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6400::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6500::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6600::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6700::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6800::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6900::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6a00::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6b00::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6c00::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6d00::/40 /40 authorized for AS131630 — Lazco Corporation
2a14:7580:6e00::/40 /40 authorized for AS131630 — Lazco Corporation
+18 more — see the REST API

NIC Handles

AM2340-AP AS209554 AS209554 AS4743 AS49304 CLOUDIE-MNT CLOUDIE-MNT DUMY-RIPE DUMY-RIPE HYEHOST-MNT INN1-AP INN1-AP +14 more