Global R&E Routing Table Report 18:30 GMT Sun 29 Aug, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 17762 Prefixes after maximum aggregation (per Origin AS): 10141 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11431 Total ASes present in the Internet Routing Table: 2706 Prefixes per ASN: 6.56 Origin-only ASes present in the Internet Routing Table: 2316 Origin ASes announcing only one prefix: 1083 Transit ASes present in the Internet Routing Table: 390 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 37073 Number of 32-bit ASNs visible in the Routing Table: 592 Prefixes from 32-bit ASNs in the Routing Table: 1748 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: 4 Number of addresses announced to Internet: 202618624 Equivalent to 12 /8s, 19 /16s and 183 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 1747 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4751 Total APNIC prefixes after maximum aggregation: 2325 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4752 Unique aggregates announced from the APNIC address blocks: 2664 APNIC Region origin ASes present in the Internet Routing Table: 566 APNIC Prefixes per ASN: 8.40 APNIC Region origin ASes announcing only one prefix: 234 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46136064 Equivalent to 2 /8s, 191 /16s and 251 /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: 7509 Total ARIN prefixes after maximum aggregation: 4350 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 7521 Unique aggregates announced from the ARIN address blocks: 4929 ARIN Region origin ASes present in the Internet Routing Table: 1177 ARIN Prefixes per ASN: 6.39 ARIN Region origin ASes announcing only one prefix: 437 ARIN Region transit ASes present in the Internet Routing Table: 158 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 157 Number of ARIN addresses announced to Internet: 91966208 Equivalent to 5 /8s, 123 /16s and 75 /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: 3370 Total RIPE prefixes after maximum aggregation: 2741 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3364 Unique aggregates announced from the RIPE address blocks: 2752 RIPE Region origin ASes present in the Internet Routing Table: 674 RIPE Prefixes per ASN: 4.99 RIPE Region origin ASes announcing only one prefix: 325 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 130 Number of RIPE addresses announced to Internet: 58031104 Equivalent to 3 /8s, 117 /16s and 124 /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: 1291 Total LACNIC prefixes after maximum aggregation: 534 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1291 Unique aggregates announced from the LACNIC address blocks: 789 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 7.87 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 3800576 Equivalent to 0 /8s, 57 /16s and 254 /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: 830 Total AfriNIC prefixes after maximum aggregation: 185 AfriNIC Deaggregation factor: 4.49 Prefixes being announced from the AfriNIC address blocks: 830 Unique aggregates announced from the AfriNIC address blocks: 293 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 17.29 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 2.8 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2683648 Equivalent to 0 /8s, 40 /16s and 243 /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 2156 455 SINET-AS Research Organization of Infor 7497 433 214 25 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 180 330 126 AARNET-AS-AP Australian Academic and Re 4538 169 4192 72 ERX-CERNET-BKB China Education and Rese 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 81 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 2152 154 507 84 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 108 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 78 528 13 MIT-GATEWAYS, US 3477 72 71 42 NOAA-NWAVE, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 274 1997 236 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 8895 141 24 4 ISU Internet Services Unit ISU, SA 559 116 550 107 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 177 207 40 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 20191 31 16 1 Pontificia Universidad Catolica de Chil 271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 337 319 74 TENET-1, ZA 327687 133 28 3 RENU, UG 2561 72 5 31 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 37 16 1 MoRENet, MZ 37215 32 8 1 MAREN, MW 36914 30 82 3 KENET-AS, KE 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 607 2156 455 SINET-AS Research Organization of Infor 7497 433 214 25 CSTNET-AS-AP Computer Network Informati 2018 337 319 74 TENET-1, ZA 680 274 1997 236 DFN Verein zur Foerderung eines Deutsch 7896 241 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 786 186 1763 184 JANET Jisc Services Limited, GB 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 180 330 126 AARNET-AS-AP Australian Academic and Re 1916 177 207 40 Associacao Rede Nacional de Ensino e Pe Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 433 408 CSTNET-AS-AP Computer Network Information Cente 2018 337 263 TENET-1, ZA 7896 241 234 NU-AS, US 58647 164 162 KAGAWAU-AS Kagawa University, JP 1916 177 137 Associacao Rede Nacional de Ensino e Pesquisa, 8895 141 137 ISU Internet Services Unit ISU, SA 18558 137 133 NETBLK-RCOEK, US 327687 133 130 RENU, UG 55824 128 106 NKN-CORE-NW NKN Core Network, IN 2920 108 102 LACOE, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US 14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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/UbuntuNet/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, US 205.166.145.0/24 Origin: 394784 UNASSIGNED 205.166.145.0/24 Transit: 40831 PHS, US Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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 /14:36 /15:117 /16:1979 /17:376 /18:414 /19:570 /20:853 /21:854 /22:1373 /23:1457 /24:9700 /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 8895 136 141 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 327700 31 37 MoRENet, MZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 40326 29 33 ECKERD-COLLEGE, US 200521 29 47 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 5:15 8:2 12:1 14:84 18:41 23:7 24:5 31:6 37:6 38:9 40:1 41:82 42:30 44:5 45:59 46:7 47:1 49:10 50:1 52:1 58:4 59:20 60:4 61:3 62:7 63:34 64:46 65:1 66:37 67:42 68:8 69:21 71:1 72:11 74:20 76:28 77:6 78:3 79:10 80:14 81:30 82:4 83:7 84:5 85:34 86:9 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:3 102:11 103:296 104:19 106:1 108:8 109:8 110:3 111:19 112:4 114:23 116:5 117:61 118:32 119:18 121:27 122:8 123:8 124:42 125:12 128:81 129:174 130:95 131:94 132:60 133:138 134:96 136:3 137:139 138:10 139:4 140:35 141:2 142:43 143:32 144:54 146:125 147:66 148:159 149:13 150:38 151:6 152:71 153:11 154:24 155:49 156:65 157:25 158:45 159:116 160:25 161:16 162:20 163:59 164:40 165:54 166:1 167:16 168:130 169:10 170:51 171:1 172:2 173:2 175:32 176:8 177:7 178:1 179:11 180:21 181:11 182:5 184:7 185:42 186:3 187:17 188:12 189:6 190:48 191:30 192:1407 193:248 194:141 195:93 196:174 197:4 198:469 199:246 200:220 201:38 202:632 203:427 204:346 205:172 206:178 207:163 208:58 209:110 210:180 211:14 212:169 213:4 216:78 217:15 218:26 219:14 220:16 222:4 223:2 End of report