AS18530 — ISOMEDIA-1

Network type: hosting

AS18530 announces 61 IPv4 prefixes covering 64,256 addresses and 15 IPv6 prefixes.

About this network

The AS handle ISOMEDIA-1 is held by Isomedia, Inc.

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries such as dsl-151-254.sea.blarg.net and host-23-254.lax.gigabitnow.com, as well as netnames like NET-SEANET-BLK-1 and LEGACY-SWIFTV-BLOCK3.
• With 64,256 IPv4 addresses announced across 71 prefixes and 34 observed neighbours, the ratio indicates an access network serving end-users rather than a transit provider.

Notable

• Registrants are predominantly Isomedia, Inc., though one prefix (64.38.180.0/22) is registered to GigabitNow Indiana, LLC, suggesting a subsidiary or acquired entity.
• The inventory includes legacy netnames referencing SeaNet and SwiftV, indicating the consolidation of older ISP infrastructure under the Isomedia brand.
• The address inventory is finely subdivided into numerous /22 and /23 blocks, consistent with site-by-site segmentation for a regional broadband provider.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 38.76.240.0/23
• 46.243.160.0/24
• 64.38.128.0/21
• 64.38.136.0/22
• 64.38.140.0/23
• 64.38.144.0/23
• 64.38.147.0/24
• 64.38.148.0/24
• 64.38.150.0/23
• 64.38.152.0/24
• 64.38.154.0/23
• 64.38.156.0/22
• 64.38.160.0/21
• 64.38.168.0/22
• 64.38.172.0/24
• 64.38.174.0/23
• 64.38.176.0/23
• 64.38.179.0/24
• 64.38.180.0/22
• 66.114.128.0/22
• 66.114.132.0/23
• 66.114.134.0/24
• 66.114.136.0/21
• 66.114.144.0/21
• 66.114.152.0/22
• 66.114.156.0/23
• 66.114.159.0/24
• 192.150.44.0/24
• 198.51.194.0/24
• 199.66.140.0/22
• 199.181.164.0/22
• 199.181.168.0/24
• 199.201.137.0/24
• 199.242.244.0/24
• 199.245.214.0/24
• 204.8.32.0/24
• 204.8.34.0/24
• 204.13.165.0/24
• 204.13.166.0/23
• 204.14.122.0/23
• 204.15.224.0/21
• 204.128.133.0/24
• 206.40.133.0/24
• 206.40.158.0/23
• 206.124.128.0/19
• 206.129.5.0/24
• 206.129.6.0/23
• 206.129.8.0/24
• 206.129.112.0/22
• 207.14.34.0/24
• 207.115.64.0/19
• 208.99.192.0/21
• 208.99.200.0/24
• 208.99.202.0/23
• 208.99.204.0/22
• 208.99.208.0/22
• 208.99.212.0/24
• 208.99.214.0/23
• 208.99.216.0/21
• 216.9.0.0/19
• 216.18.239.0/24
• 2001:560::/45
• 2001:560:6::/47
• 2001:560:8::/45
• 2001:560:10::/44
• 2001:560:20::/43
• 2001:560:40::/42
• 2001:560:80::/41
• 2001:560:100::/40
• 2001:560:200::/39
• 2001:560:400::/38
• 2001:560:800::/37
• 2001:560:1000::/36
• 2001:560:2000::/35
• 2001:560:4000::/34
• 2001:560:8000::/33

Upstream networks

• AS209 CenturyLink Communications, LLC
• AS6939 Hurricane Electric LLC
• AS11404 Wave Broadband
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS21859 Zenlayer Inc
• AS6461 Zayo Bandwidth
• AS7575 Australian Academic and Research Network (AARNet)
• AS3130 RGnet OU
• AS394256 Tech Futures Interactive Inc.
• AS34927 iFog GmbH
• AS24482 SG.GS
• AS19133 Bird Hosting Inc.
• AS3356 Level 3 Parent, LLC

Downstream networks

• AS10557 Connect Northwest Internet Services, LLC
• AS399310 South Sound 911
• AS397731 EliteWork LLC
• AS400699 KitsapWiFi
• AS18849 Richesin Engineering, LLC
• AS22030 Zipcon LLC
• AS16652 Riseup Networks
• AS53340 VegasNAP, LLC
• AS30170 Isomedia, Inc.
• AS399524 SoundLine Communications
• AS62642 Bigleaf Networks, Inc.
• AS18647 Accel Net, Inc.
• AS398960 Cryoflesh Inc

Adjacent networks

• AS209 CenturyLink Communications, LLC
• AS10557 Connect Northwest Internet Services, LLC
• AS11404 Wave Broadband
• AS6939 Hurricane Electric LLC
• AS399310 South Sound 911
• AS397731 EliteWork LLC
• AS9002 RETN Limited
• AS30170 Isomedia, Inc.
• AS174 Cogent Communications, LLC
• AS7575 Australian Academic and Research Network (AARNet)
• AS394256 Tech Futures Interactive Inc.
• AS3130 RGnet OU
• AS34927 iFog GmbH
• AS24482 SG.GS
• AS21859 Zenlayer Inc
• AS400699 KitsapWiFi
• AS18849 Richesin Engineering, LLC
• AS6461 Zayo Bandwidth
• AS22030 Zipcon LLC
• AS53340 VegasNAP, LLC
• AS16652 Riseup Networks
• AS2544 King County Gov
• AS19133 Bird Hosting Inc.
• AS52025 ParadoxNetworks Limited
• AS3356 Level 3 Parent, LLC

Internet exchanges

• Seattle Internet Exchange — Seattle, United States
• FD-IX - Indianapolis — Indianapolis, United States