Global R&E Routing Table Report 17:05 GMT Sun 12 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14579 Prefixes after maximum aggregation (per Origin AS): 6631 Deaggregation factor: 2.20 Unique aggregates announced (without unneeded subnets): 5954 Total ASes present in the Internet Routing Table: 2139 Prefixes per ASN: 6.82 Origin-only ASes present in the Internet Routing Table: 1845 Origin ASes announcing only one prefix: 875 Transit ASes present in the Internet Routing Table: 294 Transit-only ASes present in the Internet Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 14 Max AS path prepend of ASN ( 5474) 11 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 37207 Number of 32-bit ASNs visible in the Routing Table: 463 Prefixes from 32-bit ASNs in the Routing Table: 1368 Number of bogon 32-bit ASNs visible in the Routing Table: 14579 Special use prefixes present in the Routing Table: 913 Prefixes being announced from unallocated address space: 1 Number of addresses announced to Internet: 133946304 Equivalent to 7 /8s, 251 /16s and 219 /24s Percentage of available address space announced: 3.6 Percentage of allocated address space announced: 3.6 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: 6150 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4097 Total APNIC prefixes after maximum aggregation: 1217 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 1603 Unique aggregates announced from the APNIC address blocks: 572 APNIC Region origin ASes present in the Internet Routing Table: 447 APNIC Prefixes per ASN: 3.59 APNIC Region origin ASes announcing only one prefix: 190 APNIC Region transit ASes present in the Internet Routing Table: 46 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 162 Number of APNIC addresses announced to Internet: 19976224 Equivalent to 1 /8s, 48 /16s and 208 /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, 131072-147769 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: 5441 Total ARIN prefixes after maximum aggregation: 2611 ARIN Deaggregation factor: 2.08 Prefixes being announced from the ARIN address blocks: 7334 Unique aggregates announced from the ARIN address blocks: 2413 ARIN Region origin ASes present in the Internet Routing Table: 856 ARIN Prefixes per ASN: 8.57 ARIN Region origin ASes announcing only one prefix: 315 ARIN Region transit ASes present in the Internet Routing Table: 108 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 105 Number of ARIN addresses announced to Internet: 78884576 Equivalent to 4 /8s, 179 /16s and 174 /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: 3110 Total RIPE prefixes after maximum aggregation: 2362 RIPE Deaggregation factor: 1.32 Prefixes being announced from the RIPE address blocks: 4599 Unique aggregates announced from the RIPE address blocks: 2850 RIPE Region origin ASes present in the Internet Routing Table: 609 RIPE Prefixes per ASN: 7.55 RIPE Region origin ASes announcing only one prefix: 291 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 112 Number of RIPE addresses announced to Internet: 26293696 Equivalent to 1 /8s, 145 /16s and 53 /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: 1103 Total LACNIC prefixes after maximum aggregation: 278 LACNIC Deaggregation factor: 3.97 Prefixes being announced from the LACNIC address blocks: 2 Unique aggregates announced from the LACNIC address blocks: 2 LACNIC Region origin ASes present in the Internet Routing Table: 144 LACNIC Prefixes per ASN: 0.01 LACNIC Region origin ASes announcing only one prefix: 56 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 131072 Equivalent to 0 /8s, 2 /16s and 0 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 822 Total AfriNIC prefixes after maximum aggregation: 157 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 127 Unique aggregates announced from the AfriNIC address blocks: 114 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 2.70 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 8462080 Equivalent to 0 /8s, 129 /16s and 31 /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 7497 662 112 4 CSTNET-AS-AP Computer Network Informati 2907 619 2000 196 SINET-AS Research Organization of Infor 1237 188 33 3 KREONET-AS-KR KISTI, KR 7575 180 316 56 AARNET-AS-AP Australian Academic and Re 58647 176 16 1 KAGAWAU-AS Kagawa University, JP 4538 170 1394 38 ERX-CERNET-BKB China Education and Rese 55824 128 18 19 NKN-CORE-NW NKN Core Network, IN 2697 55 1 7 ERX-ERNET-AS Education and Research Net 1659 54 1298 19 ERX-TANET-ASN1 Taiwan Academic Network 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 228 163 29 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 2152 156 404 46 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 111 16 1 LACOE, US 21976 86 49 15 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3477 67 69 23 NOAA-NWAVE, US 22742 66 48 28 CT-EDU-NET, US Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 275 1979 234 DFN Verein zur Foerderung eines Deutsch 786 186 1721 178 JANET Jisc Services Limited, GB 8895 174 0 2 ISU Internet Services Unit ISU, SA 559 116 550 107 SWITCH Peering requests: peering@switch 1103 95 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 82 653 75 ASGARR Consortium GARR, IT 2200 66 647 61 FR-RENATER Reseau National de telecommu 2614 61 28 36 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 52 127 39 SUNET SUNET Swedish University Network, Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 189 41 6 Associacao Rede Nacional de Ensino e Pe 11340 94 22 46 Red Universitaria Nacional, CL 1251 65 12 2 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 49 53 30 Fundacao Carlos Chagas Filho de Amparo 19611 44 16 1 Associacao Antonio Vieira - Unisinos, B 4270 42 16 1 Red de Interconexion Universitaria, AR 61468 41 2 11 CEDIA, EC 28614 38 1 1 Fundacao Universidade Regional de Blume 28571 32 16 1 UNIVERSIDADE DE SAO PAULO, BR 20191 31 16 1 Pontificia Universidad Catolica de Chil Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 335 319 72 TENET-1, ZA 327687 135 28 3 RENU, UG 36914 100 82 3 KENET-AS, KE 8094 55 48 4 PUKNET, ZA 327700 35 16 1 MoRENet, MZ 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 7497 662 112 4 CSTNET-AS-AP Computer Network Informati 2907 619 2000 196 SINET-AS Research Organization of Infor 2018 335 319 72 TENET-1, ZA 680 275 1979 234 DFN Verein zur Foerderung eines Deutsch 376 228 163 29 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 1916 189 41 6 Associacao Rede Nacional de Ensino e Pe 1237 188 33 3 KREONET-AS-KR KISTI, KR 786 186 1721 178 JANET Jisc Services Limited, GB 7575 180 316 56 AARNET-AS-AP Australian Academic and Re Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 2907 619 423 SINET-AS Research Organization of Information a 2018 335 263 TENET-1, ZA 376 228 199 RISQ-AS, CA 5786 195 194 UPRENET, PR 1237 188 185 KREONET-AS-KR KISTI, KR 1916 189 183 Associacao Rede Nacional de Ensino e Pesquisa, 58647 176 175 KAGAWAU-AS Kagawa University, JP 8895 174 172 ISU Internet Services Unit ISU, SA 4538 170 132 ERX-CERNET-BKB China Education and Research Net 18558 136 132 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 14822 UNALLOCATED 40.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 40.163.64.0/24 10466 MAGPI, US 14822 UNALLOCATED 40.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 40.163.128.0/17 10466 MAGPI, US 22063 UNALLOCATED 53.10.0.0/16 2152 CSUNET-NW, US 99354 UNALLOCATED 85.19.228.0/22 0 UNALLOCATED Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 0.28.128.0/18 13796 UCONN-ARIN, US 0.245.128.0/17 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.128.0/24 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.160.0/27 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.192.0/24 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.193.0/24 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.194.0/24 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.200.0/21 7497 CSTNET-AS-AP Computer Network Information Cente 0.245.208.0/21 7497 CSTNET-AS-AP Computer Network Information Cente 0.73.144.0/21 34511 F-INTEGRA-AS Manresa 5, ES Complete listing at https://bgp.nsrc.org/REN/ASREN/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 41.78.0.0/16 Origin: 680 DFN Verein zur Foerderung eines Deutsche 41.78.0.0/16 Transit: 20965 GEANT The GEANT IP Service, NL Complete listing at https://bgp.nsrc.org/REN/ASREN/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:1 /10:2 /11:1 /12:10 /13:19 /14:35 /15:102 /16:1669 /17:277 /18:303 /19:440 /20:662 /21:723 /22:1133 /23:1212 /24:7571 /25:165 /26:144 /27:110 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7497 464 662 CSTNET-AS-AP Computer Network Information Cente 2907 341 619 SINET-AS Research Organization of Information a 2018 238 335 TENET-1, ZA 1916 184 189 Associacao Rede Nacional de Ensino e Pesquisa, 680 138 275 DFN Verein zur Foerderung eines Deutschen Forsc 327687 130 135 RENU, UG 1237 106 188 KREONET-AS-KR KISTI, KR 270 94 119 AS270, US 11340 92 94 Red Universitaria Nacional, CL 376 68 228 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:264 2:401 3:529 4:427 5:206 6:198 7:177 8:60 9:157 10:180 11:18 12:175 13:4 14:18 16:49 17:17 18:22 19:31 20:9 21:27 22:13 23:2 24:39 28:65 29:31 30:84 31:84 32:51 33:138 34:87 36:186 37:107 38:10 39:4 40:34 41:2 42:21 43:32 44:27 46:122 47:26 48:7 49:13 50:19 51:6 52:61 53:6 54:24 55:36 56:65 57:25 58:42 59:116 60:25 61:15 62:11 63:61 64:35 65:53 66:1 67:16 68:102 69:9 70:43 72:2 73:1 75:20 76:8 77:8 78:1 79:7 80:21 82:5 84:4 85:36 86:2 87:17 88:12 89:5 90:36 91:6 92:1170 93:186 94:110 95:58 96:174 97:5 98:327 99:179 End of report