$ query “AS3303” --type=asn → 1 result(s)
AS3303 — SWISSCOM
Swisscom (Schweiz) AG
AS3303 is a major transit provider run by Swisscom (Schweiz) AG, based in Switzerland since 2002. The network announces an impressive 3.5 million IPv4 addresses, including a /13. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #96 by Degree — Top 100 by unique BGP neighbor count
- #1 in Switzerland — Top 10 by reach within country
Basic Information
- Country
- 🇨🇭 Switzerland
- Category
- Internet Service Provider
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 19, 2002
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 355 / 219
- IPv6 Prefixes (raw / aggregated)
- 48 / 26
- IPv4 Addresses
- 3 522 048
- Largest IPv4 Prefix
- /13 (524 288 addresses)
- Largest IPv6 Prefix
- /27
- Geolocated Countries
- 🇨🇭 CH (362 IPs), 🇦🇺 AU (1 IPs), 🇩🇪 DE (6 IPs), 🇳🇱 NL, 🇺🇸 US
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 35 flagged IPs out of 3 522 048 total (0.00%)
Connectivity Summary
- Upstream Providers
- 4 upstream autonomous systems providing transit
- Peers
- 1 323 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 167 downstream autonomous systems buying transit
- Degree
- 1 501 unique BGP neighbors (providers + customers + peers)
- Reach
- 35 533 — customer cone size measuring network influence
- Degree Rank
- #96
- Reach Rank
- #121
- Country Rank
- #1
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (355 total)
- 85.0.0.0/13 (524 288 addresses)
- 178.192.0.0/13 (524 288 addresses)
- 83.76.0.0/14 (262 144 addresses)
- 92.104.0.0/14 (262 144 addresses)
- 188.60.0.0/14 (262 144 addresses)
- 62.202.0.0/15 (131 072 addresses)
- 81.62.0.0/15 (131 072 addresses)
- 217.192.0.0/15 (131 072 addresses)
- 46.14.0.0/16 (65 536 addresses)
- 138.188.0.0/16 (65 536 addresses)
- 138.190.0.0/16 (65 536 addresses)
- 138.223.0.0/16 (65 536 addresses)
- 146.4.0.0/16 (65 536 addresses)
- 162.21.0.0/16 (65 536 addresses)
- 176.127.0.0/16 (65 536 addresses)
- 194.209.0.0/16 (65 536 addresses)
- 195.65.0.0/16 (65 536 addresses)
- 195.186.0.0/16 (65 536 addresses)
- 212.243.0.0/16 (65 536 addresses)
- 213.3.0.0/16 (65 536 addresses)
- 109.164.128.0/17 (32 768 addresses)
- 164.128.128.0/17 (32 768 addresses)
- 170.17.128.0/17 (32 768 addresses)
- 83.173.192.0/18 (16 384 addresses)
- 84.253.0.0/18 (16 384 addresses)
- 95.152.64.0/18 (16 384 addresses)
- 138.81.0.0/18 (16 384 addresses)
- 138.81.128.0/18 (16 384 addresses)
- 138.187.128.0/18 (16 384 addresses)
- 144.2.64.0/18 (16 384 addresses)
- 170.205.64.0/18 (16 384 addresses)
- 178.174.0.0/18 (16 384 addresses)
- 213.200.192.0/18 (16 384 addresses)
- 164.128.32.0/19 (8 192 addresses)
- 164.128.64.0/19 (8 192 addresses)
- 178.174.64.0/19 (8 192 addresses)
- 193.222.64.0/19 (8 192 addresses)
- 193.223.32.0/19 (8 192 addresses)
- 194.6.160.0/19 (8 192 addresses)
- 195.144.32.0/19 (8 192 addresses)
- 195.176.128.0/19 (8 192 addresses)
- 195.176.192.0/19 (8 192 addresses)
- 212.41.192.0/19 (8 192 addresses)
- 212.90.192.0/19 (8 192 addresses)
- 212.117.96.0/19 (8 192 addresses)
- 213.180.160.0/19 (8 192 addresses)
- 78.110.128.0/20 (4 096 addresses)
- 80.75.192.0/20 (4 096 addresses)
- 80.94.144.0/20 (4 096 addresses)
- 161.78.0.0/20 (4 096 addresses)
IPv6 Prefixes (48 total)
- 2a02:1200::/27
- 2a02:21b0::/29
- 2001:918::/32
- 2001:91a::/32
- 2001:91f::/32
- 2a01:8b00::/32
- 2a01:a2e0::/32
- 2a02:a90::/32
- 2a02:4620::/32
- 2001:4d98::/33
- 2a06:d581:3000::/36
- 2a07:2902:400::/38
- 2001:678:e0::/48
- 2001:678:d98::/48
- 2001:678:d9c::/48
- 2001:67c:420::/48
- 2001:67c:4f0::/48
- 2001:67c:5dc::/48
- 2001:67c:ff0::/48
- 2001:67c:1984::/48
- 2001:67c:273c::/48
- 2001:67c:2950::/48
- 2001:67c:2f70::/48
- 2a0d:ed80:101::/48
- 2a10:a1c0::/48
- 2a10:a1c0:1002::/48