$ query “AS2734” --type=asn → 1 result(s)
AS2734 — CORESITE
CoreSite
AS2734 is a mid-size transit provider run by CoreSite, registered in the United States since 2009. The network announces a respectable 48 896 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
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 01, 2009
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 59 / 36
- IPv6 Prefixes (raw / aggregated)
- 21 / 9
- IPv4 Addresses
- 48 896
- Largest IPv4 Prefix
- /18 (16 384 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 US (39 IPs), 🇭🇰 HK (2 IPs), 🇬🇧 GB (2 IPs), 🇸🇬 SG
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 2 flagged IPs out of 48 896 total (0.00%)
Connectivity Summary
- Upstream Providers
- 4 upstream autonomous systems providing transit
- Peers
- 626 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 18 downstream autonomous systems buying transit
- Degree
- 651 unique BGP neighbors (providers + customers + peers)
- Reach
- 24 — customer cone size measuring network influence
- Degree Rank
- #226
- Reach Rank
- #2 083
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (59 total)
- 142.255.192.0/18 (16 384 addresses)
- 66.128.144.0/20 (4 096 addresses)
- 67.212.144.0/20 (4 096 addresses)
- 66.35.72.0/21 (2 048 addresses)
- 66.35.88.0/21 (2 048 addresses)
- 208.74.72.0/21 (2 048 addresses)
- 208.77.96.0/21 (2 048 addresses)
- 208.84.144.0/21 (2 048 addresses)
- 66.35.68.0/22 (1 024 addresses)
- 98.158.144.0/22 (1 024 addresses)
- 98.158.152.0/22 (1 024 addresses)
- 192.34.20.0/22 (1 024 addresses)
- 199.119.180.0/22 (1 024 addresses)
- 204.9.200.0/22 (1 024 addresses)
- 208.64.252.0/22 (1 024 addresses)
- 66.35.64.0/23 (512 addresses)
- 66.35.84.0/23 (512 addresses)
- 98.158.150.0/23 (512 addresses)
- 98.158.158.0/23 (512 addresses)
- 173.45.174.0/23 (512 addresses)
- 199.197.10.0/23 (512 addresses)
- 66.35.67.0/24 (256 addresses)
- 66.35.80.0/24 (256 addresses)
- 66.35.83.0/24 (256 addresses)
- 66.35.86.0/24 (256 addresses)
- 98.158.148.0/24 (256 addresses)
- 98.158.157.0/24 (256 addresses)
- 162.216.127.0/24 (256 addresses)
- 173.45.170.0/24 (256 addresses)
- 192.150.41.0/24 (256 addresses)
- 204.9.204.0/24 (256 addresses)
- 204.9.207.0/24 (256 addresses)
- 206.223.143.0/24 (256 addresses)
- 208.64.248.0/24 (256 addresses)
- 208.64.251.0/24 (256 addresses)
- 208.78.157.0/24 (256 addresses)
IPv6 Prefixes (21 total)
- 2607:2f80::/32
- 2605:6c00:4000::/34
- 2604:3fc0:2000::/35
- 2605:6c00:2000::/35
- 2605:6c00:1000::/36
- 2605:6c00:8000::/36
- 2605:6c00:a000::/36
- 2605:6c00::/45
- 2605:6c00:8::/48