Global R&E Routing Table Report 18:30 GMT Tue 14 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UbuntuNet/ Analysis Summary ---------------- BGP routing table entries examined: 17575 Prefixes after maximum aggregation (per Origin AS): 10088 Deaggregation factor: 1.74 Unique aggregates announced (without unneeded subnets): 11336 Total ASes present in the Internet Routing Table: 2675 Prefixes per ASN: 6.57 Origin-only ASes present in the Internet Routing Table: 2311 Origin ASes announcing only one prefix: 1082 Transit ASes present in the Internet Routing Table: 364 Transit-only ASes present in the Internet Routing Table: 52 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 15 Max AS path prepend of ASN (211089) 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: 37205 Number of 32-bit ASNs visible in the Routing Table: 586 Prefixes from 32-bit ASNs in the Routing Table: 1742 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: 202478592 Equivalent to 12 /8s, 17 /16s and 148 /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: 1734 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4592 Total APNIC prefixes after maximum aggregation: 2266 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4593 Unique aggregates announced from the APNIC address blocks: 2569 APNIC Region origin ASes present in the Internet Routing Table: 558 APNIC Prefixes per ASN: 8.23 APNIC Region origin ASes announcing only one prefix: 237 APNIC Region transit ASes present in the Internet Routing Table: 57 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 213 Number of APNIC addresses announced to Internet: 45691136 Equivalent to 2 /8s, 185 /16s and 49 /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: 7472 Total ARIN prefixes after maximum aggregation: 4342 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 7487 Unique aggregates announced from the ARIN address blocks: 4914 ARIN Region origin ASes present in the Internet Routing Table: 1176 ARIN Prefixes per ASN: 6.37 ARIN Region origin ASes announcing only one prefix: 436 ARIN Region transit ASes present in the Internet Routing Table: 154 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: 153 Number of ARIN addresses announced to Internet: 92271872 Equivalent to 5 /8s, 127 /16s and 245 /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: 3378 Total RIPE prefixes after maximum aggregation: 2755 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3369 Unique aggregates announced from the RIPE address blocks: 2767 RIPE Region origin ASes present in the Internet Routing Table: 674 RIPE Prefixes per ASN: 5.00 RIPE Region origin ASes announcing only one prefix: 325 RIPE Region transit ASes present in the Internet Routing Table: 109 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 129 Number of RIPE addresses announced to Internet: 58029312 Equivalent to 3 /8s, 117 /16s and 117 /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: 1289 Total LACNIC prefixes after maximum aggregation: 533 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1289 Unique aggregates announced from the LACNIC address blocks: 788 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 7.96 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 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: 833 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 833 Unique aggregates announced from the AfriNIC address blocks: 294 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 17.00 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 2.9 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2684672 Equivalent to 0 /8s, 40 /16s and 247 /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 172 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 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 8895 142 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 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 61 32 58 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 135 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 14 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 680 275 1998 237 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 8895 142 138 ISU Internet Services Unit ISU, SA 1916 177 137 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 135 132 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: 20965 GEANT The GEANT IP Service, NL 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 /17:375 /18:421 /19:551 /20:832 /21:842 /22:1364 /23:1422 /24:9603 /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 137 142 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 43 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 23:8 24:5 31:6 37:6 38:9 40:1 41:83 42:13 44:5 45:61 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 66:36 67:42 68:8 69:21 71:1 72:11 74:20 76:32 77:6 78:3 79:10 80:18 81:29 82:4 83:7 84:5 85:35 86:9 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:3 102:12 103:300 104:15 106:1 108:8 109:8 110:3 111:19 112:4 114:23 116:5 117:61 118:32 119:18 121:27 122:8 123:8 124:39 125:5 128:81 129:173 130:95 131:93 132:61 133:138 134:96 136:3 137:140 138:10 139:4 140:35 141:2 142:43 143:30 144:54 146:125 147:58 148:159 149:13 150:36 151:6 152:71 153:11 154:24 155:50 156:65 157:25 158:45 159:117 160:25 161:16 162:20 163:60 164:40 165:54 166:2 167:16 168:130 169:10 170:51 172:2 173:2 175:18 176:8 177:7 178:1 179:11 180:21 181:11 182:5 184:6 185:42 186:3 187:17 188:12 189:3 190:48 191:30 192:1401 193:252 194:142 195:93 196:172 197:4 198:468 199:245 200:218 201:38 202:601 203:405 204:347 205:172 206:177 207:162 208:57 209:114 210:182 211:14 212:171 213:4 216:78 217:15 218:25 219:13 220:16 222:5 223:2 End of report