Global R&E Routing Table Report 17:10 GMT Tue 14 Dec, 2021 BGP Table (R&E) as seen at URAN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/URAN/ Analysis Summary ---------------- BGP routing table entries examined: 18687 Prefixes after maximum aggregation (per Origin AS): 10551 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11736 Total ASes present in the Internet Routing Table: 2743 Prefixes per ASN: 6.81 Origin-only ASes present in the Internet Routing Table: 2370 Origin ASes announcing only one prefix: 1091 Transit ASes present in the Internet Routing Table: 373 Transit-only ASes present in the Internet Routing Table: 47 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 15 Max AS path prepend of ASN (211089) 11 Prefixes from unregistered ASNs in the Routing Table: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 38069 Number of 32-bit ASNs visible in the Routing Table: 616 Prefixes from 32-bit ASNs in the Routing Table: 1708 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: 207087536 Equivalent to 12 /8s, 87 /16s and 231 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2072 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4766 Total APNIC prefixes after maximum aggregation: 2325 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4768 Unique aggregates announced from the APNIC address blocks: 2637 APNIC Region origin ASes present in the Internet Routing Table: 576 APNIC Prefixes per ASN: 8.28 APNIC Region origin ASes announcing only one prefix: 244 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 223 Number of APNIC addresses announced to Internet: 46018368 Equivalent to 2 /8s, 190 /16s and 47 /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: 8040 Total ARIN prefixes after maximum aggregation: 4647 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 8050 Unique aggregates announced from the ARIN address blocks: 5187 ARIN Region origin ASes present in the Internet Routing Table: 1210 ARIN Prefixes per ASN: 6.65 ARIN Region origin ASes announcing only one prefix: 430 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 156 Number of ARIN addresses announced to Internet: 96089616 Equivalent to 5 /8s, 186 /16s and 54 /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: 3456 Total RIPE prefixes after maximum aggregation: 2783 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3443 Unique aggregates announced from the RIPE address blocks: 2782 RIPE Region origin ASes present in the Internet Routing Table: 679 RIPE Prefixes per ASN: 5.07 RIPE Region origin ASes announcing only one prefix: 322 RIPE Region transit ASes present in the Internet Routing Table: 103 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: 134 Number of RIPE addresses announced to Internet: 58157760 Equivalent to 3 /8s, 119 /16s and 106 /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: 1510 Total LACNIC prefixes after maximum aggregation: 603 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1511 Unique aggregates announced from the LACNIC address blocks: 833 LACNIC Region origin ASes present in the Internet Routing Table: 176 LACNIC Prefixes per ASN: 8.59 LACNIC Region origin ASes announcing only one prefix: 72 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4064928 Equivalent to 0 /8s, 62 /16s and 6 /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: 913 Total AfriNIC prefixes after maximum aggregation: 191 AfriNIC Deaggregation factor: 4.78 Prefixes being announced from the AfriNIC address blocks: 913 Unique aggregates announced from the AfriNIC address blocks: 295 AfriNIC Region origin ASes present in the Internet Routing Table: 53 AfriNIC Prefixes per ASN: 17.23 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2756352 Equivalent to 0 /8s, 42 /16s and 15 /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 624 2157 458 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 4538 178 4192 72 ERX-CERNET-BKB China Education and Rese 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4621 80 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/URAN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 251 51 7 NU-AS, US 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 145 507 85 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 111 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 280 1950 246 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 177 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 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 203 207 42 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 52286 53 4 31 Columbus Networks Guatemala, GT 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 356 319 74 TENET-1, ZA 36914 202 82 3 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 40 16 1 MoRENet, MZ 327687 38 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37182 13 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 624 2157 458 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 356 319 74 TENET-1, ZA 680 280 1950 246 DFN Verein zur Foerderung eines Deutsch 7896 251 51 7 NU-AS, US 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 1916 203 207 42 Rede Nacional de Ensino e Pesquisa, BR 36914 202 82 3 KENET-AS, KE 5786 200 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/URAN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 430 406 CSTNET-AS-AP Computer Network Information Cente 2018 356 282 TENET-1, ZA 7896 251 244 NU-AS, US 36914 202 199 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 1916 203 161 Rede Nacional de Ensino e Pesquisa, BR 18558 136 132 NETBLK-RCOEK, US 4538 178 106 ERX-CERNET-BKB China Education and Research Net Complete listing at https://bgp.nsrc.org/REN/URAN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/URAN/data-badAS 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 Complete listing at https://bgp.nsrc.org/REN/URAN/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 /13:18 /14:36 /15:123 /16:2029 /17:394 /18:441 /19:569 /20:878 /21:907 /22:1436 /23:1560 /24:10093 /25:75 /26:60 /27:50 /28:1 /29:0 /30:0 /31:0 /32:3 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 188 202 KENET-AS, KE 8895 172 177 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 35 40 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 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 Complete listing at https://bgp.nsrc.org/REN/URAN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:42 23:7 24:3 31:6 37:6 38:9 40:1 41:121 42:13 44:5 45:47 46:6 47:1 49:10 50:1 52:1 58:7 59:20 60:4 61:3 62:7 63:34 64:46 66:36 67:43 68:8 69:20 71:1 72:10 74:20 76:33 77:6 78:3 79:10 80:17 81:27 82:3 83:7 84:9 85:33 86:7 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:6 96:5 97:1 98:2 101:8 102:14 103:310 104:12 106:1 108:8 109:9 110:3 111:16 112:4 114:23 116:5 117:61 118:32 119:21 121:27 122:8 123:8 124:39 125:4 128:85 129:174 130:93 131:82 132:58 133:139 134:105 136:192 137:80 138:8 139:5 140:47 141:2 142:41 143:35 144:52 145:1 146:125 147:60 148:159 149:13 150:39 151:6 152:77 153:11 154:26 155:51 156:67 157:26 158:42 159:117 160:25 161:16 162:20 163:65 164:46 165:54 166:2 167:16 168:161 169:10 170:53 172:2 173:2 175:29 176:8 177:10 178:1 179:11 180:21 181:12 182:6 184:6 185:38 186:3 187:18 188:13 189:3 190:50 191:37 192:1437 193:250 194:141 195:94 196:150 197:114 198:475 199:276 200:252 201:38 202:632 203:416 204:320 205:170 206:185 207:165 208:55 209:112 210:184 211:14 212:173 213:5 214:7 216:85 217:14 218:23 219:14 220:16 222:5 223:2 End of report