AS6461 ZAYO-6461 - Zayo Bandwidth

Everything the routing table and the registries say about AS6461: who holds it, which registry issued it, and which address blocks it advertises.

Transit and backboneAS6461

219 IPv4 and 13 IPv6 prefixes announced.

Registry facts

Refreshed daily
AS number
AS6461
Holder
ZAYO-6461 - Zayo Bandwidth
Country
US
Regional registry
ARIN — American Registry for Internet Numbers
Registry block
5632-6655 (IANA 16-bit Autonomous System (AS) Numbers Registry)
Announced today
Yes
IPv4 prefixes
219
IPv6 prefixes
13
Observed at
2026-09-05T16:00:00

Data: RIPEstat. Prefix and holder data comes from the RIPEstat Data API and is cached for 24 hours. The regional registry is derived from the IANA AS number allocation table. Authoritative registry records are served by ARIN RDAP.

Announced prefixes

219 IPv4 · 13 IPv6
  • 187 IPv4 shown
  • 13 IPv6 shown
  • 23.139.176.0/24
  • 31.99.0.0/18
  • 45.33.128.0/20
  • 50.115.18.0/24
  • 50.115.20.0/24
  • 50.115.24.0/24
  • 63.208.55.0/24
  • 63.249.63.0/24
  • 64.56.211.0/24
  • 64.83.132.0/24
  • 64.124.0.0/17
  • 64.124.128.0/19
  • 64.124.160.0/20
  • 64.124.176.0/21
  • 64.124.184.0/22
  • 64.124.188.0/23
  • 64.124.190.0/23
  • 64.124.192.0/18
  • 64.125.0.0/16
  • 64.125.74.0/24
  • 66.46.0.0/16
  • 66.62.132.0/24
  • 66.62.161.0/24
  • 66.62.182.0/23
  • 66.62.230.0/24
  • 66.62.238.0/24
  • 66.62.239.0/24
  • 66.62.240.0/22
  • 66.62.244.0/23
  • 66.213.128.0/19
  • 67.136.93.0/24
  • 67.208.224.0/19
  • 67.213.160.0/20
  • 67.230.192.0/19
  • 68.170.192.0/20
  • 69.147.0.0/20
  • 69.147.2.0/24
  • 69.147.4.0/24
  • 69.147.44.0/22
  • 69.147.52.0/22
  • 69.147.55.0/24
  • 69.166.105.0/24
  • 69.195.0.0/20
  • 70.98.210.0/24
  • 71.19.160.0/19
  • 72.5.65.0/24
  • 72.10.64.0/19
  • 72.20.192.0/18
  • 74.80.190.0/24
  • 74.114.161.0/24
  • 74.114.162.0/24
  • 74.114.163.0/24
  • 74.114.164.0/22
  • 74.212.179.0/24
  • 74.213.234.0/24
  • 74.213.235.0/24
  • 74.216.0.0/16
  • 76.78.123.0/24
  • 79.141.32.0/20
  • 79.183.247.0/24
  • 82.98.192.0/21
  • 82.98.232.0/21
  • 82.98.240.0/20
  • 85.95.46.0/24
  • 91.208.131.0/24
  • 94.26.98.0/24
  • 94.31.0.0/18
  • 95.164.96.0/20
  • 97.107.64.0/24
  • 97.107.65.0/24
  • 103.139.130.0/23
  • 104.36.8.0/21
  • 104.145.0.0/20
  • 104.224.2.0/24
  • 104.251.96.0/20
  • 107.178.32.0/20
  • 128.177.0.0/16
  • 129.35.162.0/24
  • 129.192.170.0/24
  • 129.192.171.0/24
  • 129.192.189.0/24
  • 141.193.226.0/24
  • 142.194.0.0/16
  • 144.83.0.0/16
  • 149.64.226.0/24
  • 150.169.12.0/24
  • 159.18.0.0/16
  • 159.246.52.0/24
  • 162.223.4.0/22
  • 162.223.112.0/22
  • 162.245.96.0/22
  • 162.249.88.0/21
  • 162.251.150.0/24
  • 162.253.136.0/21
  • 164.90.20.0/24
  • 167.217.0.0/16
  • 167.254.229.0/24
  • 168.102.128.0/20
  • 168.254.5.0/24
  • 170.81.198.0/24
  • 172.110.64.0/20
  • 173.46.64.0/20
  • 173.241.208.0/20
  • 176.46.143.0/24
  • 176.46.146.0/24
  • 184.94.0.0/17
  • 192.40.232.0/21
  • 192.64.252.0/24
  • 192.75.172.0/24
  • 192.94.120.0/24
  • 192.124.45.0/24
  • 192.132.44.0/24
  • 192.197.156.0/24
  • 193.28.62.0/23
  • 193.28.104.0/23
  • 193.34.72.0/23
  • 193.34.74.0/23
  • 193.160.88.0/22
  • 198.60.184.0/22
  • 198.90.96.0/22
  • 198.100.128.0/21
  • 198.136.150.0/24
  • 199.5.171.0/24
  • 199.16.106.0/24
  • 199.43.120.0/24
  • 199.85.120.0/22
  • 199.87.52.0/22
  • 199.96.32.0/22
  • 199.96.40.0/22
  • 199.119.160.0/22
  • 199.164.64.0/18
  • 199.164.68.0/24
  • 199.199.36.0/24
  • 199.212.160.0/19
  • 200.123.205.0/24
  • 200.123.207.0/24
  • 204.9.72.0/21
  • 204.14.211.0/24
  • 204.19.20.0/23
  • 204.128.64.0/19
  • 204.128.96.0/19
  • 204.128.96.0/24
  • 205.159.43.0/24
  • 206.165.102.0/24
  • 206.191.64.0/18
  • 206.222.64.0/19
  • 206.254.231.0/24
  • 207.11.241.0/24
  • 207.126.96.0/19
  • 207.181.64.0/18
  • 207.190.143.0/24
  • 207.230.224.0/19
  • 207.235.128.0/17
  • 207.235.133.0/24
  • 207.235.136.0/24
  • 207.235.146.0/24
  • 207.235.148.0/24
  • 207.235.149.0/24
  • 207.235.150.0/24
  • 207.235.151.0/24
  • 207.235.152.0/24
  • 207.235.153.0/24
  • 207.235.154.0/24
  • 207.235.155.0/24
  • 207.235.157.0/24
  • 207.235.158.0/24
  • 207.235.160.0/24
  • 207.235.161.0/24
  • 207.235.255.0/24
  • 207.245.0.0/18
  • 207.245.192.0/18
  • 208.39.192.0/18
  • 208.67.56.0/22
  • 208.67.192.0/21
  • 208.70.197.0/24
  • 208.83.248.0/21
  • 208.91.200.0/22
  • 208.184.0.0/15
  • 208.187.29.0/24
  • 209.66.64.0/18
  • 209.82.0.0/17
  • 209.82.160.0/19
  • 209.90.52.0/24
  • 209.90.58.0/24
  • 209.105.164.0/24
  • 209.112.0.0/18
  • 209.133.0.0/17
  • 2001:1b70:b3::/48
  • 2001:438::/32
  • 2001:4c8::/32
  • 2001:4c8:1092::/48
  • 2001:4c8:110a::/48
  • 2001:df0:7c80::/48
  • 2602:807:400c::/48
  • 2602:fdbe::/36
  • 2604:b040:b::/48
  • 2604:e500::/32
  • 2607:c200:1106::/48
  • 2800:870:1002::/48
  • 2a00:16f8::/32

A prefix here is a block this AS was seen originating in BGP, not a block it is guaranteed to own. Announcement and allocation are different facts, and they disagree more often than people expect.

Registry record

arin
FieldValue
ASNumber6461
ASNameZAYO-6461
ASHandle6461
RegDate1996-04-22
Refhttps://rdap.arin.net/registry/autnum/6461
sourceARIN
OrgAbuseHandleABUSE5675-ARIN
OrgAbuseNameAbuse
OrgAbusePhone+1-866-236-2824
OrgAbuseEmailabuse@zayo.com
OrgAbuseRefhttps://rdap.arin.net/registry/entity/ABUSE5675-ARIN
sourceARIN
OrgNOCHandleZIE-ARIN
OrgNOCNameZayo IP Engineering
OrgNOCPhone+1-866-236-2824
OrgNOCEmailipeng@zayo.com
OrgNOCRefhttps://rdap.arin.net/registry/entity/ZIE-ARIN
sourceARIN
OrgNameZayo Bandwidth
OrgIdZAYOB
Address1401 Wynkoop St.
CityDenver
StateProvCO
PostalCode80202

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