$ query “AS6461” --type=asn → 1 result(s)
AS6461 — ZAYO-6461
Zayo Bandwidth
AS6461 is a Tier-1 transit provider registered to Zayo Bandwidth, based in the United States since 1996. The network announces an impressive 1.7 million IPv4 addresses, including a /15. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #10 by Reach — Top 100 by customer cone size
- #27 by Degree — Top 100 by unique BGP neighbor count
- #8 in United States — Top 10 by reach within country
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Internet Service Provider
- Network Role
- Tier-1 Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 22, 1996
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 221 / 179
- IPv6 Prefixes (raw / aggregated)
- 16 / 13
- IPv4 Addresses
- 1 744 384
- Largest IPv4 Prefix
- /15 (131 072 addresses)
- Largest IPv6 Prefix
- /29
- Geolocated Countries
- 🇺🇸 US (823 IPs), 🇬🇧 GB (18 IPs), 🇨🇦 CA (387 IPs), 🇫🇷 FR, 🇩🇪 DE, 🇸🇬 SG, 🇳🇱 NL, 🇺🇦 UA, 🇦🇺 AU, 🇳🇿 NZ, 🇨🇭 CH, 🇯🇵 JP, 🇮🇪 IE, 🇹🇼 TW and 10 more
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 7 flagged IPs out of 1 744 384 total (0.00%)
Connectivity Summary
- Upstream Providers
- 0 upstream autonomous systems providing transit
- Peers
- 451 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 2 375 downstream autonomous systems buying transit
- Degree
- 2 885 unique BGP neighbors (providers + customers + peers)
- Reach
- 54 498 — customer cone size measuring network influence
- Degree Rank
- #27
- Reach Rank
- #10
- Country Rank
- #8
Prefix Lists
IPv4 Prefixes (221 total)
- 64.124.0.0/15 (131 072 addresses)
- 208.184.0.0/15 (131 072 addresses)
- 66.46.0.0/16 (65 536 addresses)
- 74.216.0.0/16 (65 536 addresses)
- 128.177.0.0/16 (65 536 addresses)
- 142.194.0.0/16 (65 536 addresses)
- 144.83.0.0/16 (65 536 addresses)
- 159.18.0.0/16 (65 536 addresses)
- 167.217.0.0/16 (65 536 addresses)
- 209.249.0.0/16 (65 536 addresses)
- 216.13.0.0/16 (65 536 addresses)
- 216.191.0.0/16 (65 536 addresses)
- 216.200.0.0/16 (65 536 addresses)
- 184.94.0.0/17 (32 768 addresses)
- 207.235.128.0/17 (32 768 addresses)
- 209.82.0.0/17 (32 768 addresses)
- 209.133.0.0/17 (32 768 addresses)
- 209.146.128.0/17 (32 768 addresses)
- 216.123.0.0/17 (32 768 addresses)
- 216.222.0.0/17 (32 768 addresses)
- 31.99.0.0/18 (16 384 addresses)
- 72.20.192.0/18 (16 384 addresses)
- 94.31.0.0/18 (16 384 addresses)
- 199.164.64.0/18 (16 384 addresses)
- 206.191.64.0/18 (16 384 addresses)
- 207.181.64.0/18 (16 384 addresses)
- 207.245.0.0/18 (16 384 addresses)
- 207.245.192.0/18 (16 384 addresses)
- 208.39.192.0/18 (16 384 addresses)
- 209.66.64.0/18 (16 384 addresses)
- 209.112.0.0/18 (16 384 addresses)
- 209.153.192.0/18 (16 384 addresses)
- 216.119.0.0/18 (16 384 addresses)
- 216.123.128.0/18 (16 384 addresses)
- 216.129.0.0/18 (16 384 addresses)
- 66.213.128.0/19 (8 192 addresses)
- 67.208.224.0/19 (8 192 addresses)
- 67.230.192.0/19 (8 192 addresses)
- 71.19.160.0/19 (8 192 addresses)
- 72.10.64.0/19 (8 192 addresses)
- 199.212.160.0/19 (8 192 addresses)
- 204.128.64.0/19 (8 192 addresses)
- 206.222.64.0/19 (8 192 addresses)
- 207.126.96.0/19 (8 192 addresses)
- 207.230.224.0/19 (8 192 addresses)
- 209.82.160.0/19 (8 192 addresses)
- 209.152.0.0/19 (8 192 addresses)
- 209.221.32.0/19 (8 192 addresses)
- 213.152.224.0/19 (8 192 addresses)
- 213.161.64.0/19 (8 192 addresses)
IPv6 Prefixes (16 total)
- 2a0b:7ec0::/29
- 2001:438::/32
- 2001:4c8::/32
- 2604:e500::/32
- 2a00:16f8::/32
- 2602:fdbe::/36
- 2606:da80::/36
- 2001:df0:7c80::/48
- 2001:1b70:b3::/48
- 2602:807:400c::/48
- 2604:b040:b::/48
- 2607:c200:1106::/48
- 2800:870:1002::/48