$ query “AS13977” --type=asn → 1 result(s)
AS13977 — CTELCO
Fidium
AS13977 is a mid-size transit provider registered to Fidium, based in the United States since 2006. The network announces a solid 515 584 IPv4 addresses, including a /16. 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
- April 12, 2006
- Last Changed
- March 04, 2026
- Last Seen
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 803 / 175
- IPv6 Prefixes (raw / aggregated)
- 8 / 2
- IPv4 Addresses
- 515 584
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇺🇸 US (175 IPs)
- Prefix Changed
- March 05, 2026
Reputation
- Reputation
- Good — 8 flagged IPs out of 515 584 total (0.00%)
Connectivity Summary
- Upstream Providers
- 2 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 53 downstream autonomous systems buying transit
- Degree
- 55 unique BGP neighbors (providers + customers + peers)
- Reach
- 66 — customer cone size measuring network influence
- Degree Rank
- #2 764
- Reach Rank
- #1 351
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (803 total)
- 70.8.0.0/16 (65 536 addresses)
- 163.252.0.0/16 (65 536 addresses)
- 64.222.128.0/17 (32 768 addresses)
- 69.53.0.0/17 (32 768 addresses)
- 216.212.0.0/17 (32 768 addresses)
- 64.223.64.0/18 (16 384 addresses)
- 71.169.128.0/18 (16 384 addresses)
- 64.222.96.0/19 (8 192 addresses)
- 70.20.32.0/19 (8 192 addresses)
- 70.105.224.0/19 (8 192 addresses)
- 70.109.128.0/19 (8 192 addresses)
- 71.161.192.0/19 (8 192 addresses)
- 71.173.64.0/19 (8 192 addresses)
- 71.255.128.0/19 (8 192 addresses)
- 72.65.96.0/19 (8 192 addresses)
- 72.73.64.0/19 (8 192 addresses)
- 72.92.128.0/19 (8 192 addresses)
- 72.95.96.0/19 (8 192 addresses)
- 64.223.160.0/20 (4 096 addresses)
- 64.223.208.0/20 (4 096 addresses)
- 64.223.224.0/20 (4 096 addresses)
- 70.16.192.0/20 (4 096 addresses)
- 70.109.176.0/20 (4 096 addresses)
- 71.161.80.0/20 (4 096 addresses)
- 71.181.16.0/20 (4 096 addresses)
- 71.241.128.0/20 (4 096 addresses)
- 71.241.192.0/20 (4 096 addresses)
- 71.254.0.0/20 (4 096 addresses)
- 71.254.96.0/20 (4 096 addresses)
- 72.71.208.0/20 (4 096 addresses)
- 72.71.224.0/20 (4 096 addresses)
- 72.73.112.0/20 (4 096 addresses)
- 72.87.48.0/20 (4 096 addresses)
- 64.222.64.0/21 (2 048 addresses)
- 64.222.80.0/21 (2 048 addresses)
- 64.223.176.0/21 (2 048 addresses)
- 64.223.192.0/21 (2 048 addresses)
- 68.238.56.0/21 (2 048 addresses)
- 70.16.72.0/21 (2 048 addresses)
- 70.16.96.0/21 (2 048 addresses)
- 70.16.208.0/21 (2 048 addresses)
- 70.109.168.0/21 (2 048 addresses)
- 71.161.104.0/21 (2 048 addresses)
- 71.161.112.0/21 (2 048 addresses)
- 71.168.80.0/21 (2 048 addresses)
- 71.168.96.0/21 (2 048 addresses)
- 71.168.120.0/21 (2 048 addresses)
- 71.181.40.0/21 (2 048 addresses)
- 71.181.72.0/21 (2 048 addresses)
- 71.181.80.0/21 (2 048 addresses)
IPv6 Prefixes (8 total)
- 2604:6e00::/32
- 2620:2a:c000::/48