$ query “AS19855” --type=asn → 1 result(s)

AS19855 — MASERGY

Masergy Communications Inc.

AS19855 is a mid-size transit provider registered to Masergy Communications Inc., established in the United States in 2001. The network announces a solid 159 232 IPv4 addresses, including a /16. Supports IPv6.

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
February 21, 2001
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
97 / 18
IPv6 Prefixes (raw / aggregated)
5 / 5
IPv4 Addresses
159 232
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 US (18 IPs), 🇬🇧 GB (13 IPs), 🇨🇦 CA (23 IPs), 🇸🇬 SG, 🇫🇷 FR, 🇧🇷 BR, 🇮🇳 IN, 🇳🇱 NL, 🇨🇭 CH, 🇩🇪 DE, 🇦🇺 AU, 🇲🇽 MX, 🇮🇪 IE, 🇭🇰 HK and 7 more
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs out of 159 232 total (0.00%)

Connectivity Summary

Upstream Providers
9 upstream autonomous systems providing transit
Peers
0 autonomous systems exchanging traffic without transit fees
Downstream Customers
22 downstream autonomous systems buying transit
Degree
31 unique BGP neighbors (providers + customers + peers)
Reach
23 — customer cone size measuring network influence
Degree Rank
#4 561
Reach Rank
#2 131

Upstream Providers (9)

  • AS6939 — HURRICANE
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS3491 — CONSOLE-CONNECT-ASN (Tier-1 transit)
  • AS12956 — TELXIUS (Tier-1 transit)
  • AS7473 — SINGTEL-AS-AP
  • AS33491 — COMCAST-33491
  • AS7474 — OPTUSCOM-AS01-AU
  • AS7922 — COMCAST-7922

Prefix Lists

IPv4 Prefixes (97 total)

  • 64.47.0.0/16 (65 536 addresses)
  • 64.138.0.0/17 (32 768 addresses)
  • 64.138.128.0/18 (16 384 addresses)
  • 65.96.0.0/18 (16 384 addresses)
  • 65.96.128.0/18 (16 384 addresses)
  • 80.241.64.0/20 (4 096 addresses)
  • 93.187.16.0/21 (2 048 addresses)
  • 94.199.128.0/21 (2 048 addresses)
  • 185.60.28.0/22 (1 024 addresses)
  • 140.242.146.0/23 (512 addresses)
  • 74.116.49.0/24 (256 addresses)
  • 169.143.243.0/24 (256 addresses)
  • 192.131.149.0/24 (256 addresses)
  • 192.197.247.0/24 (256 addresses)
  • 198.73.224.0/24 (256 addresses)
  • 204.139.40.0/24 (256 addresses)
  • 204.139.45.0/24 (256 addresses)
  • 204.139.49.0/24 (256 addresses)

IPv6 Prefixes (5 total)

  • 2402:2100::/32
  • 2607:fa70::/32
  • 2a03:6580::/32
  • 2400:7160:2000::/44
  • 2400:7160:2020::/44