18530 ISOMEDIA-1, US
Adjacency: 24 Upstream: 11 Downstream: 13
Upstream Adjacent AS list
AS293 ESNET, US
AS3130 RGNET-SEA RGnet Seattle Westin, EE
AS3356 LEVEL3, US
AS19133 BIRD-HOSTING, US
AS6461 ZAYO-6461, US
AS11404 AS-WAVE-1, US
AS21859 ZEN-ECN, US
AS174 COGENT-174, US
AS209 CENTURYLINK-US-LEGACY-QWEST, US
AS30170 OPTICFUSION, US
AS6939 HURRICANE, US
Downstream Adjacent AS list
AS62642 BIGLEAF, US
AS399524 SOUNDLINE-01, US
AS16652 RISEUP, US
AS30170 OPTICFUSION, US
AS18647 ACCEL-AS, US
AS22030 ZIPCON-AS-1, US
AS399310 SOUTH-SOUND-911, US
AS18849 RICHESIN-ENG, US
AS397731 ELITEWORK-01, US
AS53340 FIBERHUB, US
AS400699 KITSAPWIFI, US
AS10557 CNW, US
AS2544 METRO-AS, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2753 AS18530 ORG+TRN Originate: 79104 /15.73 Transit: 75264 /15.80 ISOMEDIA-1, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 2012 AS18530 ISOMEDIA-1, US 80 38 9 51 29 36.25% Prefix AS Path Aggregation Suggestion 38.76.240.0/23 6939 18530 46.243.160.0/24 6939 18530 64.38.128.0/18 6939 18530 64.38.137.0/24 2914 21859 18530 64.38.140.0/24 2914 21859 18530 64.38.154.0/23 2914 21859 18530 64.38.157.0/24 6939 18530 - Withdrawn - matching aggregate 64.38.128.0/18 6939 18530 64.38.158.0/24 6939 18530 - Withdrawn - matching aggregate 64.38.128.0/18 6939 18530 64.38.159.0/24 293 11404 18530 18530 18530 18530 64.38.160.0/23 2914 21859 18530 64.38.165.0/24 3303 21859 18530 64.38.179.0/24 6939 18530 - Withdrawn - matching aggregate 64.38.128.0/18 6939 18530 64.38.180.0/22 6939 18530 - Withdrawn - matching aggregate 64.38.128.0/18 6939 18530 66.114.128.0/19 6939 18530 66.114.142.0/23 2914 21859 18530 66.114.144.0/22 2914 21859 18530 + Announce - aggregate of 66.114.144.0/23 (2914 21859 18530) and 66.114.146.0/23 (2914 21859 18530) 66.114.144.0/23 2914 21859 18530 - Withdrawn - aggregated with 66.114.146.0/23 (2914 21859 18530) 66.114.146.0/23 2914 21859 18530 - Withdrawn - aggregated with 66.114.144.0/23 (2914 21859 18530) 66.114.150.0/24 2914 21859 18530 66.114.152.0/24 3303 21859 18530 66.114.155.0/24 2914 21859 18530 66.114.157.0/24 2914 21859 18530 66.114.159.0/24 2914 21859 18530 192.150.44.0/24 6939 18530 198.51.194.0/24 6939 18530 199.66.140.0/22 6939 18530 199.181.164.0/22 6939 18530 199.181.168.0/24 6939 18530 199.201.137.0/24 6939 18530 199.242.244.0/24 6939 18530 199.245.214.0/24 6939 18530 204.8.32.0/24 6939 18530 204.8.34.0/24 6939 18530 204.13.165.0/24 6939 18530 204.13.166.0/23 6939 18530 + Announce - aggregate of 204.13.166.0/24 (6939 18530) and 204.13.167.0/24 (6939 18530) 204.13.166.0/24 6939 18530 - Withdrawn - aggregated with 204.13.167.0/24 (6939 18530) 204.13.167.0/24 6939 18530 - Withdrawn - aggregated with 204.13.166.0/24 (6939 18530) 204.14.122.0/23 6939 18530 + Announce - aggregate of 204.14.122.0/24 (6939 18530) and 204.14.123.0/24 (6939 18530) 204.14.122.0/24 6939 18530 - Withdrawn - aggregated with 204.14.123.0/24 (6939 18530) 204.14.123.0/24 6939 18530 - Withdrawn - aggregated with 204.14.122.0/24 (6939 18530) 204.15.224.0/21 6939 18530 + Announce - aggregate of 204.15.224.0/22 (6939 18530) and 204.15.228.0/22 (6939 18530) 204.15.224.0/23 6939 18530 - Withdrawn - aggregated with 204.15.226.0/23 (6939 18530) 204.15.226.0/24 6939 18530 - Withdrawn - aggregated with 204.15.227.0/24 (6939 18530) 204.15.227.0/24 6939 18530 - Withdrawn - aggregated with 204.15.226.0/24 (6939 18530) 204.15.228.0/24 6939 18530 - Withdrawn - aggregated with 204.15.229.0/24 (6939 18530) 204.15.229.0/24 6939 18530 - Withdrawn - aggregated with 204.15.228.0/24 (6939 18530) 204.15.230.0/24 6939 18530 - Withdrawn - aggregated with 204.15.231.0/24 (6939 18530) 204.15.231.0/24 6939 18530 - Withdrawn - aggregated with 204.15.230.0/24 (6939 18530) 204.128.133.0/24 6939 18530 206.40.133.0/24 6939 18530 206.40.158.0/23 6939 18530 206.124.128.0/19 6939 18530 206.129.5.0/24 6939 18530 206.129.6.0/23 6939 18530 206.129.8.0/24 6939 18530 206.129.112.0/22 6939 18530 207.14.34.0/24 6939 18530 207.115.64.0/19 6939 18530 208.99.192.0/21 6939 18530 + Announce - aggregate of 208.99.192.0/22 (6939 18530) and 208.99.196.0/22 (6939 18530) 208.99.192.0/23 6939 18530 - Withdrawn - aggregated with 208.99.194.0/23 (6939 18530) 208.99.194.0/24 6939 18530 - Withdrawn - aggregated with 208.99.195.0/24 (6939 18530) 208.99.195.0/24 6939 18530 - Withdrawn - aggregated with 208.99.194.0/24 (6939 18530) 208.99.196.0/22 6939 18530 - Withdrawn - aggregated with 208.99.192.0/22 (6939 18530) 208.99.196.0/23 6939 18530 - Withdrawn - matching aggregate 208.99.196.0/22 6939 18530 208.99.200.0/24 6939 18530 208.99.202.0/23 6939 18530 208.99.202.0/24 6939 18530 - Withdrawn - matching aggregate 208.99.202.0/23 6939 18530 208.99.204.0/22 6939 18530 + Announce - aggregate of 208.99.204.0/23 (6939 18530) and 208.99.206.0/23 (6939 18530) 208.99.204.0/24 6939 18530 - Withdrawn - aggregated with 208.99.205.0/24 (6939 18530) 208.99.205.0/24 6939 18530 - Withdrawn - aggregated with 208.99.204.0/24 (6939 18530) 208.99.206.0/24 6939 18530 - Withdrawn - aggregated with 208.99.207.0/24 (6939 18530) 208.99.207.0/24 6939 18530 - Withdrawn - aggregated with 208.99.206.0/24 (6939 18530) 208.99.208.0/22 6939 18530 + Announce - aggregate of 208.99.208.0/23 (6939 18530) and 208.99.210.0/23 (6939 18530) 208.99.208.0/23 6939 18530 - Withdrawn - aggregated with 208.99.210.0/23 (6939 18530) 208.99.210.0/23 6939 18530 - Withdrawn - aggregated with 208.99.208.0/23 (6939 18530) 208.99.212.0/24 6939 18530 208.99.214.0/23 6939 18530 + Announce - aggregate of 208.99.214.0/24 (6939 18530) and 208.99.215.0/24 (6939 18530) 208.99.214.0/24 6939 18530 - Withdrawn - aggregated with 208.99.215.0/24 (6939 18530) 208.99.215.0/24 6939 18530 - Withdrawn - aggregated with 208.99.214.0/24 (6939 18530) 208.99.216.0/21 6939 18530 + Announce - aggregate of 208.99.216.0/22 (6939 18530) and 208.99.220.0/22 (6939 18530) 208.99.216.0/22 6939 18530 - Withdrawn - aggregated with 208.99.220.0/22 (6939 18530) 208.99.220.0/24 6939 18530 - Withdrawn - aggregated with 208.99.221.0/24 (6939 18530) 208.99.221.0/24 6939 18530 - Withdrawn - aggregated with 208.99.220.0/24 (6939 18530) 208.99.222.0/24 6939 18530 - Withdrawn - aggregated with 208.99.223.0/24 (6939 18530) 208.99.223.0/24 6939 18530 - Withdrawn - aggregated with 208.99.222.0/24 (6939 18530) 216.9.0.0/19 6939 18530 216.9.16.0/21 6939 18530 - Withdrawn - matching aggregate 216.9.0.0/19 6939 18530 216.9.24.0/22 6939 18530 - Withdrawn - matching aggregate 216.9.0.0/19 6939 18530 216.18.239.0/24 6939 18530
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS18530 120 More Specifics 172 Total Advertisements ISOMEDIA-1, US
2.56.20.0/23 2.56.20.0/22
2.56.22.0/23 2.56.20.0/22
23.27.15.0/24 23.27.0.0/16
23.27.19.0/24 23.27.0.0/16
23.27.56.0/21 23.27.0.0/16
23.27.170.0/24 23.27.0.0/16
23.27.221.0/24 23.27.0.0/16
23.27.223.0/24 23.27.0.0/16
23.27.226.0/24 23.27.0.0/16
23.230.249.0/24 23.230.0.0/16
45.38.252.0/24 45.38.0.0/15
45.39.64.0/24 45.38.0.0/15
45.39.90.0/24 45.38.0.0/15
50.117.38.0/24 50.117.0.0/17
50.118.202.0/24 50.118.128.0/17
64.38.141.0/24 64.38.128.0/18
64.38.154.0/23 64.38.128.0/18
64.38.157.0/24 64.38.128.0/18
64.38.158.0/24 64.38.128.0/18
64.38.179.0/24 64.38.128.0/18
66.114.152.0/24 66.114.128.0/19
84.39.200.0/23 84.39.200.0/22
84.39.202.0/23 84.39.200.0/22
92.246.68.0/23 92.246.68.0/22
92.246.70.0/23 92.246.68.0/22
104.252.9.0/24 104.252.0.0/15
104.252.104.0/24 104.252.0.0/15
104.252.106.0/24 104.252.0.0/15
104.252.177.0/24 104.252.0.0/15
104.252.180.0/24 104.252.0.0/15
104.252.248.0/24 104.252.0.0/15
104.253.42.0/24 104.252.0.0/15
104.253.45.0/24 104.252.0.0/15
104.253.61.0/24 104.252.0.0/15
104.253.100.0/24 104.252.0.0/15
104.253.101.0/24 104.252.0.0/15
104.253.107.0/24 104.252.0.0/15
104.253.110.0/24 104.252.0.0/15
136.0.74.0/24 136.0.0.0/16
136.0.79.0/24 136.0.0.0/16
136.0.125.0/24 136.0.0.0/16
142.111.6.0/23 142.111.0.0/16
142.252.12.0/22 142.252.0.0/16
142.252.118.0/24 142.252.0.0/16
142.252.130.0/24 142.252.0.0/16
142.252.134.0/24 142.252.0.0/16
142.252.136.0/24 142.252.0.0/16
142.252.146.0/24 142.252.0.0/16
142.252.147.0/24 142.252.0.0/16
142.252.152.0/24 142.252.0.0/16
142.252.221.0/24 142.252.0.0/16
142.252.248.0/24 142.252.0.0/16
142.252.249.0/24 142.252.0.0/16
142.252.250.0/24 142.252.0.0/16
142.252.251.0/24 142.252.0.0/16
166.88.121.0/24 166.88.0.0/16
166.88.192.0/23 166.88.0.0/16
172.120.4.0/24 172.120.0.0/15
172.120.11.0/24 172.120.0.0/15
172.121.104.0/24 172.120.0.0/15
172.121.129.0/24 172.120.0.0/15
172.121.244.0/22 172.120.0.0/15
172.252.31.0/24 172.252.0.0/16
173.245.64.0/22 173.245.64.0/19
193.31.32.0/23 193.31.32.0/22
193.31.34.0/23 193.31.32.0/22
194.31.151.0/24 194.31.148.0/22
194.93.52.0/23 194.93.52.0/22
194.93.54.0/23 194.93.52.0/22
194.156.137.0/24 194.156.136.0/22
195.38.0.0/23 195.38.0.0/22
195.38.2.0/23 195.38.0.0/22
204.8.32.0/24 204.8.32.0/22
204.8.34.0/24 204.8.32.0/22
204.13.165.0/24 204.13.164.0/22
204.13.166.0/24 204.13.164.0/22
204.13.167.0/24 204.13.164.0/22
204.14.122.0/24 204.14.120.0/22
204.14.123.0/24 204.14.120.0/22
204.15.224.0/23 204.15.224.0/21
204.15.226.0/24 204.15.224.0/21
204.15.227.0/24 204.15.224.0/21
204.15.228.0/24 204.15.224.0/21
204.15.229.0/24 204.15.224.0/21
204.15.230.0/24 204.15.224.0/21
204.15.231.0/24 204.15.224.0/21
206.40.133.0/24 206.40.128.0/19
206.40.158.0/23 206.40.128.0/19
206.129.5.0/24 206.129.0.0/16
206.129.6.0/23 206.129.0.0/16
206.129.8.0/24 206.129.0.0/16
206.129.112.0/22 206.129.0.0/16
207.14.34.0/24 207.12.0.0/14
208.99.192.0/23 208.99.192.0/19
208.99.194.0/24 208.99.192.0/19
208.99.195.0/24 208.99.192.0/19
208.99.196.0/22 208.99.192.0/19
208.99.196.0/23 208.99.192.0/19
208.99.200.0/24 208.99.192.0/19
208.99.202.0/23 208.99.192.0/19
208.99.202.0/24 208.99.192.0/19
208.99.204.0/24 208.99.192.0/19
208.99.205.0/24 208.99.192.0/19
208.99.206.0/24 208.99.192.0/19
208.99.207.0/24 208.99.192.0/19
208.99.208.0/23 208.99.192.0/19
208.99.210.0/23 208.99.192.0/19
208.99.212.0/24 208.99.192.0/19
208.99.214.0/24 208.99.192.0/19
208.99.215.0/24 208.99.192.0/19
208.99.216.0/22 208.99.192.0/19
208.99.220.0/24 208.99.192.0/19
208.99.221.0/24 208.99.192.0/19
208.99.222.0/24 208.99.192.0/19
208.99.223.0/24 208.99.192.0/19
209.73.141.0/24 209.73.128.0/19
216.9.16.0/21 216.9.0.0/19
216.9.24.0/22 216.9.0.0/19
216.18.239.0/24 216.18.224.0/20
216.172.142.0/24 216.172.128.0/19
64.38.180.0/22 64.38.128.0/18
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 85.198.24.0/22 Announced
+ 204.122.16.0/22 Announced
- 64.38.180.0/22 Withdrawn
- 204.122.16.0/24 Withdrawn
whois: 402603
IANA has recorded AS18530 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18530\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 18530
ASName: ISOMEDIA-1
ASHandle: AS18530
RegDate: 2000-09-08
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/18530
OrgName: Isomedia, Inc.
OrgId: ISOM
Address: PO Box 58288
City: Seattle
StateProv: WA
PostalCode: 98138
Country: US
RegDate: 1996-05-12
Updated: 2026-06-03
Ref: https://rdap.arin.net/registry/entity/ISOM
ReferralServer: rwhois://rwhois.isomedia.com:4321
OrgNOCHandle: DNSAD104-ARIN
OrgNOCName: DNS Admin
OrgNOCPhone: +1-425-605-5700
OrgNOCEmail: arin-noc-poc@isomedia.com
OrgNOCRef: https://rdap.arin.net/registry/entity/DNSAD104-ARIN
OrgAbuseHandle: NAT8-ARIN
OrgAbuseName: Network Abuse Team
OrgAbusePhone: +1-425-605-5700
OrgAbuseEmail: abuse@isomedia.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NAT8-ARIN
OrgTechHandle: NOCAD123-ARIN
OrgTechName: NOC Administrators
OrgTechPhone: +1-253-830-2943
OrgTechEmail: isofusion-arin@isofusion.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOCAD123-ARIN
RTechHandle: SM362-ARIN
RTechName: Milton, Steve
RTechPhone: +1-425-605-5700
RTechEmail: arin-admin@isomedia.com
RTechRef: https://rdap.arin.net/registry/entity/SM362-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Found a referral to rwhois.isomedia.com:4321.
%rwhois V-1.5:003eff:00 rwhois.isomedia.com (by Network Solutions, Inc. V-1.5.9.6)
%error 230 No Objects Found