Global R&E Routing Table Report 18:45 GMT Thu 27 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/TENET/ Analysis Summary ---------------- BGP routing table entries examined: 16486 Prefixes after maximum aggregation (per Origin AS): 8471 Deaggregation factor: 1.95 Unique aggregates announced (without unneeded subnets): 9869 Total ASes present in the Internet Routing Table: 2253 Prefixes per ASN: 7.32 Origin-only ASes present in the Internet Routing Table: 1942 Origin ASes announcing only one prefix: 859 Transit ASes present in the Internet Routing Table: 311 Transit-only ASes present in the Internet Routing Table: 50 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 36142 Number of 32-bit ASNs visible in the Routing Table: 479 Prefixes from 32-bit ASNs in the Routing Table: 1452 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 163873536 Equivalent to 9 /8s, 196 /16s and 131 /24s Percentage of available address space announced: 4.4 Percentage of allocated address space announced: 4.4 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: 1776 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4663 Total APNIC prefixes after maximum aggregation: 2355 APNIC Deaggregation factor: 1.98 Prefixes being announced from the APNIC address blocks: 4664 Unique aggregates announced from the APNIC address blocks: 2712 APNIC Region origin ASes present in the Internet Routing Table: 575 APNIC Prefixes per ASN: 8.11 APNIC Region origin ASes announcing only one prefix: 247 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 216 Number of APNIC addresses announced to Internet: 46313216 Equivalent to 2 /8s, 194 /16s and 175 /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: 8298 Total ARIN prefixes after maximum aggregation: 4719 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 8317 Unique aggregates announced from the ARIN address blocks: 5428 ARIN Region origin ASes present in the Internet Routing Table: 1218 ARIN Prefixes per ASN: 6.83 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 149 Number of ARIN addresses announced to Internet: 96900096 Equivalent to 5 /8s, 198 /16s and 148 /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: 918 Total RIPE prefixes after maximum aggregation: 635 RIPE Deaggregation factor: 1.45 Prefixes being announced from the RIPE address blocks: 913 Unique aggregates announced from the RIPE address blocks: 637 RIPE Region origin ASes present in the Internet Routing Table: 206 RIPE Prefixes per ASN: 4.43 RIPE Region origin ASes announcing only one prefix: 96 RIPE Region transit ASes present in the Internet Routing Table: 32 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 29 Number of RIPE addresses announced to Internet: 13970176 Equivalent to 0 /8s, 213 /16s and 43 /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: 1436 Total LACNIC prefixes after maximum aggregation: 585 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1434 Unique aggregates announced from the LACNIC address blocks: 816 LACNIC Region origin ASes present in the Internet Routing Table: 176 LACNIC Prefixes per ASN: 8.15 LACNIC Region origin ASes announcing only one prefix: 71 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4192512 Equivalent to 0 /8s, 63 /16s and 249 /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: 1156 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 7.09 Prefixes being announced from the AfriNIC address blocks: 1156 Unique aggregates announced from the AfriNIC address blocks: 274 AfriNIC Region origin ASes present in the Internet Routing Table: 25 AfriNIC Prefixes per ASN: 46.24 AfriNIC Region origin ASes announcing only one prefix: 6 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 3.3 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8 Number of AfriNIC addresses announced to Internet: 2497024 Equivalent to 0 /8s, 38 /16s and 26 /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 2907 607 2155 455 SINET-AS Research Organization of Infor 7497 435 213 26 CSTNET-AS-AP Computer Network Informati 1237 188 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 128 AARNET-AS-AP Australian Academic and Re 58647 161 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4538 123 4192 72 ERX-CERNET-BKB China Education and Rese 4621 82 37 11 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 57 1450 34 ERX-TANET-ASN1 Taiwan Academic Network Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 2152 162 507 95 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 23024 114 7 17 OCDE, US 2920 109 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8895 140 24 4 ISU Internet Services Unit (ISU), SA 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 1653 52 151 49 SUNET SUNET Swedish University Network, 1741 43 183 22 FUNETAS, FI 288 26 5 26 ESA Robert Bosch Strasse 5, DE 513 20 87 19 CERN, CH 3267 20 67 17 RUNNET, RU 8674 17 2 11 NETNOD-IX Netnod Internet Exchange Sver 224 13 256 13 UNINETT UNINETT, The Norwegian Universi 29384 13 3 9 QATAR-FOUNDATION, QA Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 178 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 419 82 3 KENET-AS, KE 2018 323 319 74 TENET-1, ZA 327687 136 28 3 RENU, UG 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2155 455 SINET-AS Research Organization of Infor 7497 435 213 26 CSTNET-AS-AP Computer Network Informati 36914 419 82 3 KENET-AS, KE 2018 323 319 74 TENET-1, ZA 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 1237 188 75 137 KREONET-AS-KR KISTI, KR 7575 181 331 128 AARNET-AS-AP Australian Academic and Re Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 419 416 KENET-AS, KE 7497 435 409 CSTNET-AS-AP Computer Network Information Cente 2018 323 249 TENET-1, ZA 7896 245 238 NU-AS, US 5786 201 200 UPRENET, PR 58647 161 159 KAGAWAU-AS Kagawa University, JP 1916 178 137 Associacao Rede Nacional de Ensino e Pesquisa, 8895 140 136 ISU Internet Services Unit (ISU), SA 327687 136 133 RENU, UG 18558 136 132 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/TENET/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US Complete listing at https://bgp.nsrc.org/REN/TENET/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 /12:9 /13:16 /14:31 /15:90 /16:1525 /17:343 /18:383 /19:500 /20:793 /21:750 /22:1175 /23:1306 /24:9561 /25:0 /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 36914 393 419 KENET-AS, KE 8895 135 140 ISU Internet Services Unit (ISU), SA 23024 53 114 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 327700 32 38 MoRENet, MZ 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 18632 29 55 VOLCANO-VISION, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 43 LONI, US Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 6:4 8:2 12:1 14:84 18:41 23:7 24:6 35:2 38:9 40:1 41:239 42:25 44:3 45:48 46:1 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:2 63:38 64:56 65:5 66:53 67:45 68:9 69:18 71:1 72:11 74:19 76:32 77:4 80:3 81:1 82:2 84:2 85:14 86:9 87:1 89:2 91:17 92:1 93:1 95:1 96:5 97:1 98:2 101:6 102:7 103:297 104:72 106:1 107:16 108:12 109:6 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:19 121:29 122:8 123:8 124:40 125:13 128:76 129:174 130:91 131:83 132:60 133:135 134:89 136:192 137:147 138:9 139:5 140:48 141:1 142:43 143:33 144:53 146:125 147:61 148:154 149:13 150:36 151:8 152:76 153:1 154:24 155:52 156:63 157:25 158:45 159:114 160:26 161:34 162:23 163:65 164:40 165:24 166:1 167:15 168:124 169:9 170:67 171:1 172:1 173:7 175:32 176:8 177:7 179:12 180:21 181:11 182:6 184:6 185:12 186:3 187:18 188:5 189:6 190:44 191:36 192:1071 193:77 194:56 195:61 196:168 197:203 198:509 199:274 200:258 201:39 202:589 203:427 204:359 205:181 206:195 207:175 208:61 209:120 210:188 211:14 212:131 213:2 214:7 216:65 217:2 218:26 219:8 220:24 222:4 223:2 End of report