$ query “AS19108” --type=asn → 1 result(s)
AS19108 — SUDDENLINK-COMMUNICATIONS
Optimum
AS19108 is a mid-size transit provider run by Optimum, registered in the United States since 2000. The network announces an impressive 2.8 million IPv4 addresses, including a /12. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇺🇸 United States
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- November 20, 2000
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 419 / 81
- IPv6 Prefixes (raw / aggregated)
- 23 / 8
- IPv4 Addresses
- 2 848 256
- Largest IPv4 Prefix
- /12 (1 048 576 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 US (92 IPs), 🇦🇺 AU (6 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 29 flagged IPs out of 2 848 256 total (0.00%)
- Open Proxies
- 1 known open proxies in this network
Connectivity Summary
- Upstream Providers
- 4 upstream autonomous systems providing transit
- Peers
- 19 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 69 downstream autonomous systems buying transit
- Degree
- 95 unique BGP neighbors (providers + customers + peers)
- Reach
- 82 — customer cone size measuring network influence
- Degree Rank
- #1 649
- Reach Rank
- #1 208
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (419 total)
- 47.208.0.0/12 (1 048 576 addresses)
- 50.24.0.0/14 (262 144 addresses)
- 74.192.0.0/14 (262 144 addresses)
- 75.108.0.0/14 (262 144 addresses)
- 74.196.0.0/15 (131 072 addresses)
- 173.80.0.0/15 (131 072 addresses)
- 173.216.0.0/15 (131 072 addresses)
- 24.32.0.0/16 (65 536 addresses)
- 24.121.0.0/16 (65 536 addresses)
- 66.76.0.0/16 (65 536 addresses)
- 173.218.0.0/16 (65 536 addresses)
- 208.180.0.0/16 (65 536 addresses)
- 24.156.0.0/17 (32 768 addresses)
- 24.206.128.0/17 (32 768 addresses)
- 72.47.0.0/17 (32 768 addresses)
- 173.219.0.0/17 (32 768 addresses)
- 209.33.0.0/17 (32 768 addresses)
- 72.47.128.0/18 (16 384 addresses)
- 173.219.128.0/18 (16 384 addresses)
- 205.201.64.0/18 (16 384 addresses)
- 207.192.192.0/18 (16 384 addresses)
- 209.207.0.0/18 (16 384 addresses)
- 64.72.32.0/19 (8 192 addresses)
- 66.205.96.0/19 (8 192 addresses)
- 207.254.224.0/20 (4 096 addresses)
- 216.134.80.0/20 (4 096 addresses)
- 216.134.72.0/21 (2 048 addresses)
- 24.54.116.0/22 (1 024 addresses)
- 24.224.60.0/22 (1 024 addresses)
- 24.245.72.0/22 (1 024 addresses)
- 167.160.140.0/22 (1 024 addresses)
- 207.254.248.0/22 (1 024 addresses)
- 24.72.186.0/23 (512 addresses)
- 24.224.36.0/23 (512 addresses)
- 24.224.58.0/23 (512 addresses)
- 24.245.68.0/23 (512 addresses)
- 64.234.0.0/23 (512 addresses)
- 64.234.30.0/23 (512 addresses)
- 207.254.240.0/23 (512 addresses)
- 207.254.246.0/23 (512 addresses)
- 207.254.254.0/23 (512 addresses)
- 24.31.17.0/24 (256 addresses)
- 24.49.194.0/24 (256 addresses)
- 24.49.200.0/24 (256 addresses)
- 24.54.114.0/24 (256 addresses)
- 24.72.175.0/24 (256 addresses)
- 24.75.113.0/24 (256 addresses)
- 24.75.123.0/24 (256 addresses)
- 24.75.124.0/24 (256 addresses)
- 24.75.126.0/24 (256 addresses)
IPv6 Prefixes (23 total)
- 2600:5408::/32
- 2600:5400:8000::/33
- 2600:5400:2000::/35
- 2600:5400:1000::/36
- 2600:5400:7000::/36
- 2600:5401::/44
- 2600:541e::/44
- 2620:121:d000::/44