This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from GOREX's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:30 GMT Sat 01 Jan, 2022 BGP Table (IX) as seen at GOREX. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GOREX/ Analysis Summary ---------------- BGP routing table entries examined: 910 Prefixes after maximum aggregation (per Origin AS): 720 Deaggregation factor: 1.26 Unique aggregates announced (without unneeded subnets): 823 Total ASes present in the Internet Routing Table: 162 Prefixes per ASN: 5.62 Origin-only ASes present in the Internet Routing Table: 147 Origin ASes announcing only one prefix: 72 Transit ASes present in the Internet Routing Table: 15 Transit-only ASes present in the Internet Routing Table: 2 Average AS path length visible in the Internet Routing Table: 2.9 Max AS path length visible: 8 Max AS path prepend of ASN ( 59206) 6 Prefixes from unregistered ASNs in the Routing Table: 0 Number of instances of unregistered ASNs: 0 Number of 32-bit ASNs allocated by the RIRs: 38223 Number of 32-bit ASNs visible in the Routing Table: 57 Prefixes from 32-bit ASNs in the Routing Table: 123 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 9904384 Equivalent to 0 /8s, 151 /16s and 33 /24s Percentage of available address space announced: 0.3 Percentage of allocated address space announced: 0.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 4 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 586 Total APNIC prefixes after maximum aggregation: 452 APNIC Deaggregation factor: 1.30 Prefixes being announced from the APNIC address blocks: 586 Unique aggregates announced from the APNIC address blocks: 518 APNIC Region origin ASes present in the Internet Routing Table: 129 APNIC Prefixes per ASN: 4.54 APNIC Region origin ASes announcing only one prefix: 64 APNIC Region transit ASes present in the Internet Routing Table: 10 Average APNIC Region AS path length visible: 2.8 Max APNIC Region AS path length visible: 8 Number of APNIC region 32-bit ASNs visible in the Routing Table: 55 Number of APNIC addresses announced to Internet: 5570816 Equivalent to 0 /8s, 85 /16s and 1 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 324 Total ARIN prefixes after maximum aggregation: 268 ARIN Deaggregation factor: 1.21 Prefixes being announced from the ARIN address blocks: 324 Unique aggregates announced from the ARIN address blocks: 305 ARIN Region origin ASes present in the Internet Routing Table: 31 ARIN Prefixes per ASN: 10.45 ARIN Region origin ASes announcing only one prefix: 8 ARIN Region transit ASes present in the Internet Routing Table: 4 Average ARIN Region AS path length visible: 3.2 Max ARIN Region AS path length visible: 5 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2 Number of ARIN addresses announced to Internet: 4333568 Equivalent to 0 /8s, 66 /16s and 32 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 0 Total RIPE prefixes after maximum aggregation: 0 RIPE Deaggregation factor: -nan Prefixes being announced from the RIPE address blocks: 0 Unique aggregates announced from the RIPE address blocks: 0 RIPE Region origin ASes present in the Internet Routing Table: 0 RIPE Prefixes per ASN: -nan RIPE Region origin ASes announcing only one prefix: 0 RIPE Region transit ASes present in the Internet Routing Table: 0 Average RIPE Region AS path length visible: -nan Max RIPE Region AS path length visible: 0 Number of RIPE region 32-bit ASNs visible in the Routing Table: 0 Number of RIPE addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 0 Total LACNIC prefixes after maximum aggregation: 0 LACNIC Deaggregation factor: -nan Prefixes being announced from the LACNIC address blocks: 0 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 0 LACNIC Prefixes per ASN: -nan LACNIC Region origin ASes announcing only one prefix: 0 LACNIC Region transit ASes present in the Internet Routing Table: 0 Average LACNIC Region AS path length visible: -nan Max LACNIC Region AS path length visible: 0 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 0 Total AfriNIC prefixes after maximum aggregation: 0 AfriNIC Deaggregation factor: -nan Prefixes being announced from the AfriNIC address blocks: 0 Unique aggregates announced from the AfriNIC address blocks: 0 AfriNIC Region origin ASes present in the Internet Routing Table: 0 AfriNIC Prefixes per ASN: -nan AfriNIC Region origin ASes announcing only one prefix: 0 AfriNIC Region transit ASes present in the Internet Routing Table: 0 Average AfriNIC Region AS path length visible: -nan Max AfriNIC Region AS path length visible: 0 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0 Number of AfriNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7575 175 330 123 AARNET-AS-AP Australian Academic and Re 134096 27 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 6262 21 128 17 CSIRO Commonwealth Scientific and Indus 24436 21 59 17 UQ-AS-AP University of Queensland, AU 10148 19 20 18 UNIMELB-AS-AP The University of Melbour 38022 18 19 13 REANNZ-NZ-AP REANNZ National Research a 55354 12 1 2 ACEINT-AS-AP Ace Internet Services Pty 9433 11 32 2 MASSEY-AS Massey University, NZ 4608 10 17 7 APNIC-SERVICES Asia Pacific Network Inf 56132 10 58 10 MONASHUNI-AU-AS-AP Monash University, A Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 212 702 180 DNIC-AS-00668, US 518 13 2 7 DNIC-AS-00518, US 6360 13 62 7 UNIVHAWAII, US 37 9 17 7 DNIC-AS-00037, US 13 6 32 6 DNIC-AS-00013, US 89 6 33 6 DNIC-AS-00089, US 22 5 34 5 DNIC-AS-00022, US 84 5 16 5 DNIC-AS-00084, US 121 5 2 3 DNIC-AS-00121, US 252 5 17 5 DNIC-AS-00252, US Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 212 702 180 DNIC-AS-00668, US 7575 175 330 123 AARNET-AS-AP Australian Academic and Re 134096 27 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 6262 21 128 17 CSIRO Commonwealth Scientific and Indus 24436 21 59 17 UQ-AS-AP University of Queensland, AU 10148 19 20 18 UNIMELB-AS-AP The University of Melbour 38022 18 19 13 REANNZ-NZ-AP REANNZ National Research a 518 13 2 7 DNIC-AS-00518, US 6360 13 62 7 UNIVHAWAII, US 55354 12 1 2 ACEINT-AS-AP Ace Internet Services Pty Complete listing at https://bgp.nsrc.org/REN/GOREX/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7575 175 52 AARNET-AS-AP Australian Academic and Research N 55354 12 10 ACEINT-AS-AP Ace Internet Services Pty Ltd, AU 134096 27 9 EHEALTHNSW-AS-AP eHealth NSW, AU 9433 11 9 MASSEY-AS Massey University, NZ 518 13 6 DNIC-AS-00518, US 6360 13 6 UNIVHAWAII, US 38022 18 5 REANNZ-NZ-AP REANNZ National Research and Educa 6262 21 4 CSIRO Commonwealth Scientific and Industrial, A 24436 21 4 UQ-AS-AP University of Queensland, AU 38626 5 4 ESR-NATIONAL-AS-AP ESR, NZ Complete listing at https://bgp.nsrc.org/REN/GOREX/data-CIDRnet Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:0 /10:0 /11:0 /12:0 /13:0 /14:1 /15:2 /16:123 /17:18 /18:19 /19:30 /20:40 /21:51 /22:56 /23:73 /24:496 /25:1 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 668 3 212 DNIC-AS-00668, US 4717 1 3 AI3 WIDE Project, JP Complete listing at https://bgp.nsrc.org/REN/GOREX/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 6:4 45:1 49:4 103:58 128:2 130:3 131:7 132:1 134:6 138:7 140:12 143:4 146:1 147:3 150:3 152:3 155:3 156:5 161:5 163:14 180:5 192:68 198:16 199:32 202:44 203:156 204:5 205:6 206:3 207:3 209:3 210:2 214:7 End of report