// University of Colorado at Boulder //

AS Name: COLORADO-AS

Description: University of Colorado at Boulder

Registry: RADB

aut-num: AS104
as-name: COLORADO-AS
descr: University of Colorado at Boulder
admin-c: CUBOU-ARIN
tech-c: CUBOU-ARIN
mnt-by: MAINT-AS14041
changed: jph@ucar.edu 20210811 #18:16:49Z
source: RADB
last-modified: 2023-11-13T16:08:02Z

Direct Membership

Macros that directly list AS104 as a member:

AS-CALRENDC(20 members)
AS-SUMMIT(50 members)
AS-FRGP(56 members)
AS-ICG(83 members)
AS-CALREN2(174 members)
AS-LEVEL3-ORIGINS-EU(7728 members)

Expanded Membership

All macros containing AS104 (directly or via nested macros): 282

Show 100 macros

AS-SUMMIT(50 ASNs)
AS-FRGP(56 ASNs)
AS-ICG(83 ASNs)
AS-CALREN2(289 ASNs)
AS-CALRENDC(319 ASNs)
AS-CALRENHPR(322 ASNs)
AS11164:AS-PARTICIPANTS(1,830 ASNs)
AS11164:AS-ALL(1,835 ASNs)
AS11537:AS-PARTICIPANTS-BETA(1,841 ASNs)
AS11537:AS-CONE-BETA(1,847 ASNs)
AS20965:AS-FROM-INTERNET2-TO-GEANT(2,433 ASNs)
AS293:AS-FROM-I2-TO-ESNET(2,941 ASNs)
AS-GEANTNRENPEERS(3,149 ASNs)
AS-LIMELIGHT-CUST(4,913 ASNs)
AS-LIMELIGHT(4,922 ASNs)
AS-LLNW(4,943 ASNs)
AS-RCN-CE-PEERS(5,340 ASNs)
AS-LEVEL3-ORIGINS-EU(7,728 ASNs)
AS-LEVELTHREEEU(7,728 ASNs)
AS-AS209(10,244 ASNs)
AS-QWEST(10,244 ASNs)
AS-EDGEUNO-TR(10,995 ASNs)
AS-KDDTRANSIT(11,930 ASNs)
AS-EUNET(13,944 ASNs)
AS-SAIX(15,195 ASNs)
AS-1031-PEER1(18,971 ASNs)
AS-LINKBRASIL-271253(19,032 ASNs)
AS271253:AS-CUSTOMERS(19,032 ASNs)
AS-ST1-PEERINGS(19,133 ASNs)
AS-OCCAID6(19,611 ASNs)
AS-OCCAID6-CUSTOMERS(19,611 ASNs)
AS-EDGEUNO(19,687 ASNs)
AS-MZIMA-CUSTOMERS(19,702 ASNs)
AS-MZIMA(19,703 ASNs)
AS-PXGLOBAL(19,703 ASNs)
AS-ARBINET-LAX-BUYERS(19,875 ASNs)
AS-AS53013(20,143 ASNs)
AS-VSNL-IN(23,661 ASNs)
AS4470:AS-TORIX-PEERS(27,996 ASNs)
AS4470:AS-PEERS(28,002 ASNs)
AS-KCIX-MEMBERS(32,832 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-EQUINIX-PA(34,681 ASNs)
AS30781:AS-JAGUAR-PEERING-EQUINIX-PA(37,230 ASNs)
AS-4IXP(42,438 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-FRANCE-IX-MARSEILLE(44,422 ASNs)
AS30781:AS-JAGUAR-PEERING-FRANCE-IX-MARSEILLE(46,036 ASNs)
AS-TOPIX-RS(57,252 ASNs)
AS3491:AS-CUSTOMERS-AP(58,474 ASNs)
AS-CTGNET(58,815 ASNs)
AS-37662(59,003 ASNs)
AS-CN(59,223 ASNs)
AS-LEVEL3-UAE(60,102 ASNs)
AS-CAIS(61,483 ASNs)
AS213687:AS-ERA-IX-FRANKFURT(61,777 ASNs)
AS-SOVAM-V6(64,052 ASNs)
AS-SOVAM6(64,052 ASNs)
AS-HKIX(64,663 ASNs)
AS-TELIANETASIA(65,174 ASNs)
AS1299:AS-TWELVE99-AP-V4(65,174 ASNs)
AS-PANTEL(65,191 ASNs)
AS-TTI(65,191 ASNs)
AS206221:AS-ERA-IX-AMSTERDAM(65,700 ASNs)
AS-ERA-IX(65,707 ASNs)
AS5405:AS-INTERDOTLINK(66,620 ASNs)
AS-STUTTGARTIX-RS(66,636 ASNs)
AS-TELIANETASIA-V6(66,784 ASNs)
AS1299:AS-TWELVE99-AP-V6(66,784 ASNs)
AS-CW6(66,853 ASNs)
AS1273:AS-CWW-V6(66,853 ASNs)
AS201561:AS-DECIX-CPH(66,988 ASNs)
AS201561:AS-DECIX-CPH-V6(66,988 ASNs)
AS-UAEIX(67,297 ASNs)
AS61374:AS-UAEIX(67,297 ASNs)
AS-CW(67,352 ASNs)
AS-SIXSK-SETS(67,561 ASNs)
AS-BIX(68,877 ASNs)
AS2914:AS-ASIA-V6(68,905 ASNs)
AS-SEABONECUSTEU(69,169 ASNs)
AS-FRYS-IX-CONNECTED(69,468 ASNs)
AS-BIX-BG(69,751 ASNs)
AS-NETIX-INT(69,913 ASNs)
AS43380:AS-DTEL-IX(69,913 ASNs)
AS-KIVIX(69,914 ASNs)
AS52055:AS-NETIX-GR(69,958 ASNs)
AS-SIX(70,009 ASNs)
AS-UBNIX(70,042 ASNs)
AS-GLOBAL-IX(70,222 ASNs)
AS-EPIX-LOCAL(70,298 ASNs)
AS-EPIX(70,299 ASNs)
AS-C4LPEERS(70,320 ASNs)
AS56584:AS-SET-INTERIX-RS(70,331 ASNs)
AS17645:AS-NTTS(70,764 ASNs)
AS17645:AS-NTTS-IP(70,764 ASNs)
AS2914:AS-ASIA(70,764 ASNs)
AS-NETIX-NET(71,038 ASNs)
AS-IU-CL(71,146 ASNs)
AS-TSUA-PARITY(71,146 ASNs)
AS-UAIX(71,146 ASNs)
AS-UDC2UTEL(71,146 ASNs)
... and 182 more

Upstream AS Paths

33 unique paths, avg length 2.5

AS Looking Glass

Upstream paths (matching graph above)

AS2497 → AS3356 → AS104
AS150000 → AS6939 → AS3356 → AS104
AS14537 → AS3356 → AS104
AS25091 → AS3356 → AS104
AS293 → AS14041 → AS104
AS25091 → AS1299 → AS14041 → AS104
AS140627 → AS1299 → AS14041 → AS104
AS2734 → AS14041 → AS104
AS4181 → AS14041 → AS104
AS955 → AS6939 → AS14041 → AS104
AS150000 → AS18187 → AS6939 → AS14041 → AS104
AS132337 → AS6939 → AS14041 → AS104
AS148968 → AS6939 → AS14041 → AS104
AS2497 → AS11164 → AS14041 → AS104
AS49544 → AS11164 → AS14041 → AS104
AS1351 → AS11537 → AS14041 → AS104
AS2500 → AS7660 → AS11537 → AS14041 → AS104
AS396390 → AS11537 → AS14041 → AS104
AS14537 → AS14041 → AS104
AS53828 → AS14041 → AS104

All 33 Upstream Paths

Complete list of all observed paths

AS2497 → AS3356 → AS104
AS398465 → AS3257 → AS3356 → AS104
AS3491 → AS3356 → AS104
AS6939 → AS3356 → AS104
AS150000 → AS6939 → AS3356 → AS104
AS7018 → AS3356 → AS104
AS7594 → AS3356 → AS104
AS14537 → AS3356 → AS104
AS19653 → AS3356 → AS104
AS25091 → AS3356 → AS104
AS32590 → AS3356 → AS104
AS56665 → AS3356 → AS104
AS199524 → AS3356 → AS104
AS14041 → AS104
AS293 → AS14041 → AS104
AS25091 → AS1299 → AS14041 → AS104
AS140627 → AS1299 → AS14041 → AS104
AS2734 → AS14041 → AS104
AS4181 → AS14041 → AS104
AS6939 → AS14041 → AS104
AS955 → AS6939 → AS14041 → AS104
AS150000 → AS18187 → AS6939 → AS14041 → AS104
AS132337 → AS6939 → AS14041 → AS104
AS148968 → AS6939 → AS14041 → AS104
AS2497 → AS11164 → AS14041 → AS104
AS49544 → AS11164 → AS14041 → AS104
AS11537 → AS14041 → AS104
AS1351 → AS11537 → AS14041 → AS104
AS7660 → AS11537 → AS14041 → AS104
AS2500 → AS7660 → AS11537 → AS14041 → AS104
AS396390 → AS11537 → AS14041 → AS104
AS14537 → AS14041 → AS104
AS53828 → AS14041 → AS104

AS104 IPv4 Address Subnets (20)

128.138.0.0/16	🇺🇸 US	University of Colorado Boulder	COLORADO-AS
129.19.192.0/18	🇺🇸 US	Colorado State University	COLORADO-AS
198.11.16.0/20	🇺🇸 US	University of Colorado - Boulder	COLORADO-AS
146.5.20.0/22	🇺🇸 US	National Solar Observatory at University of Colora…	COLORADO-AS
192.12.238.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS
192.12.240.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS
192.12.241.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS
192.12.242.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS
192.12.244.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS
192.12.245.0/24	🇺🇸 US	University of Colorado at Boulder	COLORADO-AS