Global R&E Routing Table Report 18:00 GMT Sat 18 Dec, 2021 BGP Table (R&E) as seen at MARWAN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/MARWAN/ Analysis Summary ---------------- BGP routing table entries examined: 14308 Prefixes after maximum aggregation (per Origin AS): 8394 Deaggregation factor: 1.70 Unique aggregates announced (without unneeded subnets): 9276 Total ASes present in the Internet Routing Table: 2174 Prefixes per ASN: 6.58 Origin-only ASes present in the Internet Routing Table: 1878 Origin ASes announcing only one prefix: 897 Transit ASes present in the Internet Routing Table: 296 Transit-only ASes present in the Internet Routing Table: 31 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 15 Max AS path prepend of ASN ( 5474) 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: 38118 Number of 32-bit ASNs visible in the Routing Table: 494 Prefixes from 32-bit ASNs in the Routing Table: 1324 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: 1 Number of addresses announced to Internet: 171199488 Equivalent to 10 /8s, 52 /16s and 76 /24s Percentage of available address space announced: 4.6 Percentage of allocated address space announced: 4.6 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: 1568 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3877 Total APNIC prefixes after maximum aggregation: 2029 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3879 Unique aggregates announced from the APNIC address blocks: 2250 APNIC Region origin ASes present in the Internet Routing Table: 456 APNIC Prefixes per ASN: 8.51 APNIC Region origin ASes announcing only one prefix: 194 APNIC Region transit ASes present in the Internet Routing Table: 49 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 174 Number of APNIC addresses announced to Internet: 38847808 Equivalent to 2 /8s, 80 /16s and 197 /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: 5428 Total ARIN prefixes after maximum aggregation: 3244 ARIN Deaggregation factor: 1.67 Prefixes being announced from the ARIN address blocks: 5437 Unique aggregates announced from the ARIN address blocks: 3651 ARIN Region origin ASes present in the Internet Routing Table: 873 ARIN Prefixes per ASN: 6.23 ARIN Region origin ASes announcing only one prefix: 320 ARIN Region transit ASes present in the Internet Routing Table: 116 Average ARIN Region AS path length visible: 6.0 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 116 Number of ARIN addresses announced to Internet: 71096320 Equivalent to 4 /8s, 60 /16s and 216 /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: 3138 Total RIPE prefixes after maximum aggregation: 2521 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3130 Unique aggregates announced from the RIPE address blocks: 2616 RIPE Region origin ASes present in the Internet Routing Table: 624 RIPE Prefixes per ASN: 5.02 RIPE Region origin ASes announcing only one prefix: 304 RIPE Region transit ASes present in the Internet Routing Table: 96 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 122 Number of RIPE addresses announced to Internet: 55655392 Equivalent to 3 /8s, 81 /16s and 59 /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: 1056 Total LACNIC prefixes after maximum aggregation: 443 LACNIC Deaggregation factor: 2.38 Prefixes being announced from the LACNIC address blocks: 1054 Unique aggregates announced from the LACNIC address blocks: 534 LACNIC Region origin ASes present in the Internet Routing Table: 145 LACNIC Prefixes per ASN: 7.27 LACNIC Region origin ASes announcing only one prefix: 59 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 3055840 Equivalent to 0 /8s, 46 /16s and 160 /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: 807 Total AfriNIC prefixes after maximum aggregation: 155 AfriNIC Deaggregation factor: 5.21 Prefixes being announced from the AfriNIC address blocks: 806 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 43 AfriNIC Prefixes per ASN: 18.74 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2543872 Equivalent to 0 /8s, 38 /16s and 209 /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 622 2156 456 SINET-AS Research Organization of Infor 7497 425 177 19 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 4538 177 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 2697 54 3 32 ERX-ERNET-AS Education and Research Net 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR 132524 49 9 11 TIFR-AS Tata Institute of Fundamental R Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 145 507 85 CSUNET-NW, US 18558 134 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 22742 68 53 34 CT-EDU-NET, US 15296 65 5 55 CYBERA, CA Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 176 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 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 58 33 56 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol 1653 53 167 50 SUNET SUNET Swedish University Network, Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 180 178 35 Rede Nacional de Ensino e Pesquisa, BR 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 49 53 31 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 28571 32 26 15 UNIVERSIDADE DE SAO PAULO, BR 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/MARWAN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 353 319 72 TENET-1, ZA 36914 202 82 3 KENET-AS, KE 8094 50 48 4 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 327687 37 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 37074 10 7 7 UG-AS, GH 36982 8 33 8 UCT, ZA 37215 8 8 1 MAREN, MW Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 622 2156 456 SINET-AS Research Organization of Infor 7497 425 177 19 CSTNET-AS-AP Computer Network Informati 2018 353 319 72 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 376 202 178 151 RISQ-AS, CA 36914 202 82 3 KENET-AS, KE 5786 200 16 1 UPRENET, PR 1237 188 74 135 KREONET-AS-KR KISTI, KR 786 186 1774 183 JANET Jisc Services Limited, GB 1916 180 178 35 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 425 406 CSTNET-AS-AP Computer Network Information Cente 2018 353 281 TENET-1, ZA 36914 202 199 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 180 145 Rede Nacional de Ensino e Pesquisa, BR 18558 134 130 NETBLK-RCOEK, US 55824 128 106 NKN-CORE-NW NKN Core Network, IN 4538 177 105 ERX-CERNET-BKB China Education and Research Net Complete listing at https://bgp.nsrc.org/REN/MARWAN/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/MARWAN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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/MARWAN/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:1 /10:2 /11:0 /12:9 /13:16 /14:33 /15:103 /16:1662 /17:290 /18:299 /19:449 /20:659 /21:727 /22:1121 /23:1187 /24:7565 /25:73 /26:61 /27:50 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 188 202 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 36 42 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 29 32 HCCS, US 200521 29 47 SEAP-AGE, ES 1916 27 180 Rede Nacional de Ensino e Pesquisa, BR 30220 25 25 SWTELCOOP, US 31638 21 21 ASN-LEPIDA, IT Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:84 23:2 24:3 31:1 37:6 38:3 41:111 42:9 44:4 45:30 46:6 49:10 58:7 59:10 60:4 61:2 62:6 63:5 64:12 66:24 67:34 68:1 69:16 71:1 72:10 74:16 76:4 77:7 78:3 79:10 80:12 81:26 82:3 83:7 84:3 85:26 86:8 87:1 88:1 89:10 91:45 93:18 94:2 95:4 96:5 101:4 102:11 103:235 104:6 106:1 108:4 109:9 110:3 111:16 112:4 114:17 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:67 129:30 130:84 131:73 132:51 133:139 134:88 136:191 137:46 138:8 139:4 140:34 141:2 142:22 143:31 144:25 145:2 146:123 147:23 148:7 149:13 150:19 151:2 152:63 153:6 154:26 155:46 156:67 157:26 158:39 159:116 160:25 161:15 162:15 163:59 164:41 165:53 166:1 167:16 168:97 169:8 170:44 172:2 173:2 175:20 176:8 177:5 178:1 179:8 180:21 182:6 184:3 185:33 186:3 187:17 188:13 189:3 190:43 192:1182 193:184 194:107 195:58 196:149 197:114 198:332 199:182 200:218 201:38 202:370 203:283 204:282 205:96 206:147 207:131 208:43 209:92 210:178 211:2 212:172 213:3 216:50 217:13 218:5 219:13 220:9 222:5 223:2 End of report