AS15305 — SYRINGANETWORKS

AS15305 announces 41 IPv4 prefixes covering 33,536 addresses and 2 IPv6 prefixes.

About this network

Sixty-six neighbours, customer telephone companies numbered in the netnames, and one reverse name pointing at the wrong address.

What it's used for

• A regional carrier. Forty-one IPv4 prefixes and two IPv6 prefixes announced from the United States, thirty-three thousand addresses in total, across sixty-six observed neighbours.

Notable

• One sampled reverse name encodes an address in a completely different block from the one that answered, so the record and the address disagree.
• Customer blocks are registered to rural telephone companies under netnames built from a three letter prefix, a five digit zero padded customer number such as 00328 or 00238, and the address.
• The carrier's own netnames come in three forms: the full company name, the same with the address appended, and SYRI, four letters.
• Most registrant fields list the company plus a hostmaster, a network operations centre and an abuse desk, the most complete contact set in this range.
• A second domain appears in reverse DNS for the wireless side of the business.

Interesting

• The mismatched reverse name is the kind of error that survives for years. It resolves, it looks plausible, and anyone reading logs will place that address in the wrong part of the network.
• Numbering customers in the netname turns the registry into a billing index. It is efficient and it quietly publishes how many customers came before this one.
• Sixty-six neighbours on thirty-three thousand addresses is a carrier whose business is reaching places other networks do not, rather than carrying volume.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.33.222.0/24
• 64.136.100.0/22
• 66.232.64.0/24
• 66.232.66.0/23
• 66.232.68.0/22
• 66.232.72.0/21
• 66.232.80.0/22
• 66.232.89.0/24
• 66.232.90.0/24
• 67.215.32.0/23
• 67.215.35.0/24
• 67.215.36.0/22
• 67.215.44.0/23
• 69.59.31.0/24
• 104.245.20.0/22
• 151.122.232.0/24
• 158.120.248.0/23
• 161.115.208.0/20
• 162.57.146.0/23
• 173.224.176.0/21
• 173.224.184.0/22
• 192.35.255.0/24
• 198.60.192.0/24
• 198.199.151.0/24
• 198.199.152.0/23
• 199.5.221.0/24
• 199.244.14.0/23
• 204.8.52.0/22
• 204.10.184.0/24
• 204.99.153.0/24
• 204.99.154.0/23
• 206.168.83.0/24
• 208.98.164.0/22
• 208.98.168.0/23
• 208.98.171.0/24
• 208.98.176.0/22
• 209.25.172.0/22
• 209.141.112.0/20
• 216.182.98.0/24
• 216.182.103.0/24
• 216.182.104.0/21
• 2605:5800::/32
• 2606:6580::/34

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS209 CenturyLink Communications, LLC
• AS37721 Virtual Technologies & Solutions
• AS14907 Wikimedia Foundation Inc.
• AS3303 Swisscom (Schweiz) AG
• AS53767 iCastCenter
• AS174 Cogent Communications, LLC

Downstream networks

• AS26223 Silver Star Communications
• AS19218 Midvale Telephone Exchange, Incorporated
• AS54847 Custer Telephone Cooperative, Inc.
• AS30530 Farmers Mutual Telephone Company
• AS32922 ATC Communications
• AS54885 State of Idaho
• AS397268 Cambridge Telephone
• AS397740 Mudlake Telephone
• AS17380 Project Mutual Telephone Cooperative Association, Inc.
• AS20295 Filer Mutual Telephone Company
• AS33284 LBiSat, LLC
• AS395107 RTI
• AS397285 Cambridge Telephone
• AS19546 R. C. Willey Home Furnishings
• AS395344 Ivanti, Inc.
• AS395846 Direct Communications Rockland, Inc
• AS14971 Pine Telephone System, Inc.
• AS46528 J.R. Simplot Company
• AS16403 Boise Cascade Corporation
• AS21947 Blackfoot Telephone Cooperative, Inc.
• AS46133 Elite Telecom, Inc
• AS30663 ISpeed Wireless Inc.,
• AS393898 AlwaysON Internet
• AS210 Utah Education Network
• AS14149 Icon Health & Fitness Inc

Adjacent networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS26223 Silver Star Communications
• AS209 CenturyLink Communications, LLC
• AS19218 Midvale Telephone Exchange, Incorporated
• AS54847 Custer Telephone Cooperative, Inc.
• AS30530 Farmers Mutual Telephone Company
• AS32922 ATC Communications
• AS54885 State of Idaho
• AS17380 Project Mutual Telephone Cooperative Association, Inc.
• AS397268 Cambridge Telephone
• AS37721 Virtual Technologies & Solutions
• AS397740 Mudlake Telephone
• AS53767 iCastCenter
• AS397285 Cambridge Telephone
• AS14907 Wikimedia Foundation Inc.
• AS20295 Filer Mutual Telephone Company
• AS33284 LBiSat, LLC
• AS395846 Direct Communications Rockland, Inc
• AS395107 RTI
• AS3303 Swisscom (Schweiz) AG
• AS21947 Blackfoot Telephone Cooperative, Inc.
• AS19546 R. C. Willey Home Furnishings
• AS395344 Ivanti, Inc.
• AS210 Utah Education Network

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Seattle Internet Exchange — Seattle, United States
• Coresite - Any2 West — Los Angeles, United States
• Any2 California — Los Angeles, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange Dallas — Dallas, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Northwest Access Exchange — Portland, United States
• Ninja-IX Phoenix — Phoenix, United States
• Salt Lake Internet Exchange — Salt Lake City, United States