AS19991
AS Name: TransitCust3
Description: ICG Communications, an ICG Telecom Group Co. 161 Inverness Drive West Englewood, CO 80112 First Energy AS Number
Registry: LEVEL3
aut-num: AS19991
as-name: TransitCust3
descr: ICG Communications, an ICG Telecom Group Co. 161 Inverness Drive West Englewood, CO 80112
admin-c: IC1-LEVEL3
tech-c: IC1-LEVEL3
mnt-by: MAINT-AS2551
changed: stacy_taylor@icgcomm.com 20020905
source: LEVEL3
aut-num: AS19991
as-name: FirstEnergy
descr: First Energy AS Number
admin-c: Ryan Wiegner
tech-c: Ryan Wiegner
mnt-by: MAINT-AS2707
changed: rwiegner@firstcomm.com 20100306 #00:20:15Z
source: RADB
last-modified: 2023-11-13T15:47:25Z
Upstream AS Paths
16 unique paths, avg length 2.4
AS Looking Glass
Upstream paths (matching graph above)
Prefixes (1) →
View all IPv4 and IPv6 prefixes originated by AS19991
Hostnames in AS19991
Direct Membership
Macros that directly list AS19991 as a member:
AS-FIRSTCOMM(14 members)
AS-ICG(83 members)
AS-EXPEDIENT(125 members)
Expanded Membership
All macros containing AS19991 (directly or via nested macros): 19
Show 19 macros
AS-FIRSTCOMM(14 ASNs)
AS-ICG(83 ASNs)
AS-EXPEDIENT(136 ASNs)
AS-COMCAST-IBONE(19,609 ASNs)
AS2914:AS-US(53,991 ASNs)
AS-VERIO(82,495 ASNs)
AS-WNA(82,495 ASNs)
AS2914:AS-GLOBAL(82,495 ASNs)
AS-GLOBEINTERNET(84,477 ASNs)
AS-GLOBEINTERNET-CLIENTS(84,477 ASNs)
AS-DECIX(96,509 ASNs)
AS-NFON-DECIX-PEERS-V4(96,509 ASNs)
AS-NFON-DECIX-PEERS-V6(96,509 ASNs)
AS6695:AS-DECIX-FRA(96,509 ASNs)
AS-ST1-IXPS(96,670 ASNs)
AS-DECIX-V6(100,277 ASNs)
AS6695:AS-DECIX-FRA-V6(100,277 ASNs)
AS-CLOUD-IX-PRO(100,911 ASNs)
AS-MERKEL-PEERS(100,925 ASNs)