AS12119 — I3BROADBAND
AS12119 announces 31 IPv4 prefixes covering 141,056 addresses and 1 IPv6 prefixes.
About this network
i3 Broadband is a fiber-to-the-home provider serving central Illinois and the St. Louis metro area, previously trading as iTV-3.
What it's used for
- Residential and small-business fiber internet, TV and phone across a set of mid-sized Midwestern cities.
Notable
- The reverse DNS names the town outright. Sampled addresses answer as fiber-255.Peoria.IL.i3broadband.com, fiber-0.Galesburg.IL.i3broadband.com, fiber-255.Rockford.IL.i3broadband.com and fiber-0.SaintCharles.MO.i3broadband.com, so the footprint is legible straight from the hostnames rather than having to be inferred from the prefixes.
- 144,000 addresses across 58 prefixes against only 5 observed BGP neighbours. That is the classic access-network shape: a lot of subscriber space reached through a handful of upstreams, with no interest in being a transit provider.
Interesting
- Nearly every announced block is registered under the single netname IL-494, which is unusually consistent for a network assembled city by city. i3 builds its own fiber into markets an incumbent already serves, so the plant grows one town at a time while the addressing stays under one roof.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 23.249.32.0/21
- 23.249.40.0/23
- 23.249.44.0/22
- 66.94.192.0/23
- 66.94.196.0/24
- 66.94.208.0/24
- 66.94.211.0/24
- 131.103.138.0/23
- 134.49.0.0/19
- 140.141.128.0/17
- 140.177.64.0/18
- 140.177.128.0/17
- 142.204.64.0/19
- 142.204.96.0/20
- 165.254.182.0/23
- 165.254.184.0/23
- 167.254.48.0/20
- 169.197.144.0/22
- 192.80.96.0/20
- 198.88.120.0/23
- 198.88.216.0/24
- 204.42.16.0/20
- 204.141.60.0/22
- 206.222.58.0/23
- 207.152.68.0/22
- 207.152.102.0/23
- 209.128.192.0/19
- 216.169.0.0/20
- 216.169.16.0/21
- 216.169.28.0/24
- 216.169.30.0/23
- 2606:a880::/32
Upstream networks
Downstream networks
Adjacent networks
- AS6939 Hurricane Electric LLC
- AS3356 Level 3 Parent, LLC
- AS2914 NTT America, Inc.
- AS32845 Tel-Star Communications, Inc
- AS401803 Peoria Park District
Routing security
- RPKI: 83 valid, 0 invalid and 7 not-found announcements; 26 ROAs.
- ASPA: none published.
- IRR: 49% of announcements registered; 83 route objects.
- Listed in as-sets: AS-HURRICANE, AS-HURRICANEV6, AS-I3-BGP-CUSTOMERS, AS-TRANSROUTE-SPEC, AS12119:AS-ALL, AS2914:AS-US-V6.
BGP / ASN / CIDR
awaiting query
enter an AS number, IP address, or organisation name above
IPv4
resolving...
IPv6
resolving...
Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED