AS209554 ISIF OU details

Summary

Country	Estonia
Organization	ISIF OU
Domain	isif.net
Number of IPv4	6,400
Number of IPv6	1.8476× 10²⁹
AS Type	Hosting
Registry	RIPE NCC
Allocated	December 27, 2022 (about 3 years ago)
Updated	December 09, 2025 (about 7 months ago)

IP Ranges

AS209554 announces 22 IPv4 ranges and 70 IPv6 ranges.

That's a total of 6,400 IPv4 addresses and 1.8476× 10²⁹ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
45.95.212.0/24	ISIF	256	RIPE NCC	ASSIGNED PA
152.175.1.0/24	Isif Network (hong Kong)	256	RIPE NCC	ASSIGNED PA
152.175.2.0/24	Isif Network (hong Kong)	256	RIPE NCC	ASSIGNED PA
152.175.4.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.5.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.6.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.7.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.8.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.9.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.10.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.11.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.12.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.13.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.14.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.15.0/24	SAKURA LINK LIMITED	256	RIPE NCC	SUB-ALLOCATED PA
152.175.16.0/22	SAKURA LINK LIMITED	1,024	RIPE NCC	SUB-ALLOCATED PA
152.175.33.0/24	Isif Network (japan)	256	RIPE NCC	ASSIGNED PA
152.175.34.0/24	Isif Network (japan)	256	RIPE NCC	ASSIGNED PA
152.175.65.0/24	Isif Network (singapore)	256	RIPE NCC	ASSIGNED PA
152.175.66.0/24	Isif Network (singapore) Alpha+	256	RIPE NCC	ASSIGNED PA
152.175.97.0/24	Isif Network (los Angeles)	256	RIPE NCC	ASSIGNED PA
194.231.149.0/24	Private Customer	256	RIPE NCC	ASSIGNED PA

Prefix	Organization	Size	Registry	Status
2001:df1:4580::/48	Zhuhai Fuyuanleyu Technology Limited	1.2089× 10²⁴	APNIC	ASSIGNED PORTABLE
2405:84c0::/32	Fy-cn Global Network	7.9228× 10²⁸	APNIC	ALLOCATED NON-PORTABLE
2405:84c0::/48	Fy-cn Global Network	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:2000::/36	Isif Network	4.9518× 10²⁷	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:4000::/36	Isif Network	4.9518× 10²⁷	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:5000::/36	Isif Network	4.9518× 10²⁷	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:6800::/40	Isif Network	3.0949× 10²⁶	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:6f00::/40	Isif Eu Network	3.0949× 10²⁶	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8000::/44	Isif Network (singapore)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8001::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8003::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8004::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8005::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8007::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8010::/44	Isif Network (japan Tokyo)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8011::/48	Isif Network (japan Tokyo)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8012::/47	Isif Network (japan Tokyo)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8014::/47	Isif Network (japan Tokyo)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8015::/48	Isif Network (japan Tokyo)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8016::/47	Isif Network (japan Tokyo)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8018::/48	Isif Network (japan Tokyo)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:801a::/48	Isif Network (japan Tokyo)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8020::/44	Isif Network (hong Kong)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8022::/47	Isif Network (hong Kong)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8024::/47	Isif Network (hong Kong)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8026::/47	Isif Network (hong Kong)	2.4179× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8028::/45	Isif Network (hong Kong)	9.6714× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8030::/44	Isif Network (los Angeles)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8030::/48	Isif Network (los Angeles)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8031::/48	Isif Network (los Angeles)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8032::/48	Isif Network (los Angeles)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8033::/48	Isif Network (los Angeles)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:803f::/48	Isif Network (los Angeles)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8040::/44	Isif Network (hong Kong)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8040::/48	Isif Network (hong Kong)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8046::/48	Isif Network (hong Kong)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8047::/48	Isif Network (hong Kong)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:804f::/48	Isif Network (hong Kong)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8050::/44	Isif Network (korea)	1.9343× 10²⁵	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8051::/48	Isif Network (korea)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8052::/48	Isif Network (korea)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:8054::/46	Isif Network (korea)	4.8357× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:a000::/36	Isif Network (hong Kong Sar)	4.9518× 10²⁷	APNIC	ALLOCATED NON-PORTABLE
2405:84c0:a100::/48	Isif Network (singapore)	1.2089× 10²⁴	APNIC	ALLOCATED NON-PORTABLE
2a0a:6040:ad00::/40	ISIF-NETWORK-20231106	3.0949× 10²⁶	RIPE NCC	ASSIGNED
2a0b:1187::/32	ISIF OU	7.9228× 10²⁸	RIPE NCC	ALLOCATED-BY-LIR
2a0b:1187:1000::/44	Isif Customer Access (japan)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0b:1187:2000::/44	Isif Customer Access (taiwan)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0b:1187:3000::/44	Isif Customer Access (united States)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0b:1187:4000::/44	Isif Customer Access (singapore)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0b:1187:5000::/44	Isif Customer Access (hong Kong)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4400::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4410::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4420::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4430::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4440::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4450::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4460::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4470::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4480::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:4490::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44a0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44b0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44c0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44d0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44e0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a0f:6284:44f0::/44	ISIF OU	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a14:7581:a000::/44	Isif Vpop Customer Access (hong Kong)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR
2a14:7581:a000::/36	Isif Vpop Customer Access (hong Kong)	4.9518× 10²⁷	RIPE NCC	ALLOCATED-BY-LIR
2a14:7581:a100::/44	Isif Vpop Customer Access (los Angeles)	1.9343× 10²⁵	RIPE NCC	ALLOCATED-BY-LIR

AS209554 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

AS27345

AS209554 connects to the global Internet via at least 2 upstream providers. In this setup, AS209554 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

AS4743 AS49304

AS209554 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS209554's role in extending Internet access beyond its own infrastructure.

AS154162

AS209554

ISIF OU — isif.net

Summary

IP Ranges

Peers

Upstreams

Downstreams

Learn more