AS13445 Cisco Webex LLC

WEBEX - Cisco Webex LLC · registered in the United States

IPv4 addresses340,73685 prefixes · 0.011% of announced IPv4

Rank in United States#204largest network in US by IPv4 space, of 18,338 · 0.03% of US

Rank worldwide#728of 79,396 networks with IPv4

IPv61 x /32 (68,341 x /48)163 prefixes

CountryUnited States18,679 ASNs registered there

Open AS13445 in ASN lookup Look up an IP in this network (8.244.137.1) All networks in United States

IPv4 prefixes

All 85 prefixes, in address order.

8.244.137.0/24
8.245.11.0/24
23.89.0.0/19
23.89.32.0/21
23.89.40.0/22
23.89.44.0/24
23.89.45.0/24
23.89.46.0/23
23.89.48.0/20
23.89.64.0/18
23.89.128.0/20
23.89.144.0/21
23.89.152.0/23
23.89.154.0/24
23.89.155.0/24
23.89.156.0/22
23.89.160.0/19
23.89.192.0/19
62.109.192.0/18
64.68.96.0/20
64.68.112.0/20
66.163.32.0/20
66.163.48.0/21
66.163.56.0/22
66.163.60.0/22
69.26.160.0/20
69.26.176.0/24
69.26.177.0/24
69.26.178.0/23
69.26.180.0/22
69.26.184.0/21
114.29.192.0/23
114.29.196.0/23
114.29.200.0/21
114.29.208.0/20
135.84.175.0/24
139.177.66.0/23
139.177.72.0/23
144.196.0.0/18
144.196.64.0/19
144.196.96.0/20
144.196.112.0/21
144.196.120.0/22
144.196.124.0/23
144.196.128.0/19
144.196.160.0/22
144.196.164.0/23
144.196.166.0/23
144.196.168.0/21
144.196.176.0/20
144.196.192.0/18
150.253.128.0/19
150.253.160.0/21
150.253.168.0/21
150.253.176.0/20
150.253.192.0/18
163.129.0.0/18
163.129.64.0/20
163.129.80.0/21
170.72.0.0/20
170.72.16.0/21
170.72.24.0/21
170.72.32.0/19
170.72.64.0/18
170.72.128.0/18
170.72.192.0/19
170.133.128.0/18
173.39.224.0/19
173.243.0.0/20
199.19.196.0/24
207.182.161.0/24
207.182.168.0/21
207.182.176.0/20
208.253.254.0/24
208.254.114.0/24
209.197.192.0/20
209.197.208.0/21
209.197.216.0/24
209.197.217.0/24
209.197.218.0/23
209.197.220.0/22
210.4.194.0/23
210.4.196.0/22
210.4.200.0/21
216.151.128.0/19

IPv6 prefixes

All 163 prefixes.

2402:2500:3::/48
2402:2500:10::/44
2402:2500:20::/43
2402:2500:40::/43
2402:2500:100::/40
2402:2500:200::/39
2402:2500:400::/39
2402:2500:1010::/44
2402:2500:1020::/44
2402:2500:1040::/44
2402:2500:1100::/44
2402:2500:1200::/44
2402:2500:1400::/44
2402:2500:1500::/44
2402:2500:2010::/44
2402:2500:2020::/43
2402:2500:2040::/44
2402:2500:2100::/44
2402:2500:2200::/44
2402:2500:2400::/44
2402:2500:2500::/44
2402:2500:5010::/44
2402:2500:5020::/44
2402:2500:5400::/44
2607:fcf0::/38
2607:fcf0:400::/39
2607:fcf0:600::/39
2607:fcf0:800::/39
2607:fcf0:a00::/40
2607:fcf0:b00::/40
2607:fcf0:c00::/38
2607:fcf0:1000::/41
2607:fcf0:1080::/43
2607:fcf0:10a1::/48
2607:fcf0:10a2::/47
2607:fcf0:10a4::/47
2607:fcf0:10a7::/48
2607:fcf0:10a8::/45
2607:fcf0:10b0::/44
2607:fcf0:10c0::/42
2607:fcf0:1100::/44
2607:fcf0:1110::/44
2607:fcf0:1120::/43
2607:fcf0:1140::/42
2607:fcf0:1180::/41
2607:fcf0:1200::/39
2607:fcf0:1400::/44
2607:fcf0:1410::/44
2607:fcf0:1420::/43
2607:fcf0:1440::/42
2607:fcf0:1480::/41
2607:fcf0:1500::/44
2607:fcf0:1510::/44
2607:fcf0:1520::/43
2607:fcf0:1540::/42
2607:fcf0:1580::/41
2607:fcf0:1600::/39
2607:fcf0:1800::/37
2607:fcf0:2000::/41
2607:fcf0:2080::/43
2607:fcf0:20a6::/48
2607:fcf0:20a8::/48
2607:fcf0:20aa::/47
2607:fcf0:20ac::/46
2607:fcf0:20b0::/44
2607:fcf0:20c0::/42
2607:fcf0:2100::/44
2607:fcf0:2110::/44
2607:fcf0:2120::/43
2607:fcf0:2140::/42
2607:fcf0:2180::/41
2607:fcf0:2200::/44
2607:fcf0:2210::/44
2607:fcf0:2220::/43
2607:fcf0:2240::/42
2607:fcf0:2280::/41
2607:fcf0:2300::/44
2607:fcf0:2310::/44
2607:fcf0:2320::/43
2607:fcf0:2340::/42
2607:fcf0:2380::/41
2607:fcf0:2400::/44
2607:fcf0:2410::/44
2607:fcf0:2420::/43
2607:fcf0:2440::/42
2607:fcf0:2480::/41
2607:fcf0:2500::/44
2607:fcf0:2510::/44
2607:fcf0:2520::/43
2607:fcf0:2540::/42
2607:fcf0:2580::/41
2607:fcf0:2600::/39
2607:fcf0:2800::/37
2607:fcf0:3000::/36
2607:fcf0:4009::/48
2607:fcf0:400b::/48
2607:fcf0:400d::/48
2607:fcf0:400f::/48
2607:fcf0:4011::/48
2607:fcf0:4013::/48
2607:fcf0:4015::/48
2607:fcf0:4016::/47
2607:fcf0:4018::/45
2607:fcf0:4020::/43
2607:fcf0:4040::/42
2607:fcf0:4080::/41
2607:fcf0:4100::/40
2607:fcf0:4200::/39
2607:fcf0:4400::/46
2607:fcf0:4408::/45
2607:fcf0:4410::/44
2607:fcf0:4420::/43
2607:fcf0:4440::/42
2607:fcf0:4480::/41
2607:fcf0:4500::/40
2607:fcf0:4600::/39
2607:fcf0:4800::/37
2607:fcf0:5000::/39
2607:fcf0:5200::/44
2607:fcf0:5210::/44
2607:fcf0:5220::/43
2607:fcf0:5240::/42
2607:fcf0:5280::/41
2607:fcf0:5300::/44
2607:fcf0:5310::/44
2607:fcf0:5320::/43
2607:fcf0:5340::/42
2607:fcf0:5380::/41
2607:fcf0:5400::/44
2607:fcf0:5410::/44
2607:fcf0:5420::/43
2607:fcf0:5440::/42
2607:fcf0:5480::/41
2607:fcf0:5500::/44
2607:fcf0:5510::/44
2607:fcf0:5520::/43
2607:fcf0:5540::/42
2607:fcf0:5580::/41
2607:fcf0:5600::/39
2607:fcf0:5800::/37
2607:fcf0:6000::/35
2607:fcf0:8000::/36
2607:fcf0:9000::/40
2607:fcf0:9100::/40
2607:fcf0:9200::/39
2607:fcf0:9400::/38
2607:fcf0:9800::/37
2607:fcf0:a000::/35
2607:fcf0:c000::/34
2a00:a640:100::/40
2a00:a640:200::/39
2a00:a640:400::/40
2a00:a640:1100::/44
2a00:a640:1200::/44
2a00:a640:1300::/44
2a00:a640:2100::/44
2a00:a640:2200::/44
2a00:a640:2300::/44
2a00:a640:5100::/44
2a00:a640:5200::/44
2a00:a640:5300::/44
2a00:a640:5400::/44
2a05:4200:7::/48

Other ASNs named Cisco Webex LLC

2 other networks use the same organisation name; together with AS13445 they announce 345,344 IPv4 addresses.

ASNNameIPv4 addresses

AS399937UCMCLOUD - Cisco Webex LLC US3,328

AS26152WXCCE - Cisco Webex LLC US1,280

Similar-sized networks in United States

ASNNameIPv4 addresses

AS647#201 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD)348,928

AS3354#202 THENET-AS-3354 - University of Texas System347,648

AS2688#203 ATGS-MMD-AS - AT&T Enterprises, LLC345,600

AS30600#205 AS-CMN - Metronet340,224

AS33654#206 CMCS - Comcast Cable Communications, LLC337,920

AS14638#207 LCPRL - Liberty Communications of Puerto Rico LLC333,824

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources