$ query “AS15305” --type=asn → 1 result(s)
AS15305 — SYRINGANETWORKS
Syringa Networks LLC
AS15305 is a major transit provider run by Syringa Networks LLC, registered in the United States since 2000. The network announces a respectable 55 296 IPv4 addresses. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇺🇸 United States
- Category
- Hosting
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- April 14, 2000
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 27 / 27
- IPv6 Prefixes (raw / aggregated)
- 3 / 2
- IPv4 Addresses
- 55 296
- Largest IPv4 Prefix
- /18 (16 384 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 US (32 IPs), 🇦🇺 AU (2 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 55 296 total (0.00%)
Connectivity Summary
- Upstream Providers
- 2 upstream autonomous systems providing transit
- Peers
- 26 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 50 downstream autonomous systems buying transit
- Degree
- 79 unique BGP neighbors (providers + customers + peers)
- Reach
- 144 — customer cone size measuring network influence
- Degree Rank
- #2 130
- Reach Rank
- #914
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (27 total)
- 208.98.128.0/18 (16 384 addresses)
- 66.232.64.0/19 (8 192 addresses)
- 67.215.32.0/20 (4 096 addresses)
- 161.115.208.0/20 (4 096 addresses)
- 173.224.176.0/20 (4 096 addresses)
- 209.141.112.0/20 (4 096 addresses)
- 216.182.96.0/20 (4 096 addresses)
- 64.136.100.0/22 (1 024 addresses)
- 104.245.20.0/22 (1 024 addresses)
- 158.120.248.0/22 (1 024 addresses)
- 204.8.52.0/22 (1 024 addresses)
- 209.25.172.0/22 (1 024 addresses)
- 45.33.222.0/23 (512 addresses)
- 162.57.146.0/23 (512 addresses)
- 198.199.152.0/23 (512 addresses)
- 199.244.14.0/23 (512 addresses)
- 204.99.154.0/23 (512 addresses)
- 69.59.31.0/24 (256 addresses)
- 151.122.232.0/24 (256 addresses)
- 192.35.255.0/24 (256 addresses)
- 198.60.192.0/24 (256 addresses)
- 198.199.151.0/24 (256 addresses)
- 199.5.221.0/24 (256 addresses)
- 204.10.184.0/24 (256 addresses)
- 204.99.153.0/24 (256 addresses)
- 205.159.98.0/24 (256 addresses)
- 206.168.83.0/24 (256 addresses)
IPv6 Prefixes (3 total)
- 2605:5800::/32
- 2606:6580::/34