Global R&E Routing Table Report 18:00 GMT Sun 19 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: 14431 Prefixes after maximum aggregation (per Origin AS): 8418 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 9299 Total ASes present in the Internet Routing Table: 2182 Prefixes per ASN: 6.61 Origin-only ASes present in the Internet Routing Table: 1885 Origin ASes announcing only one prefix: 900 Transit ASes present in the Internet Routing Table: 297 Transit-only ASes present in the Internet Routing Table: 32 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: 38132 Number of 32-bit ASNs visible in the Routing Table: 495 Prefixes from 32-bit ASNs in the Routing Table: 1346 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: 171891136 Equivalent to 10 /8s, 62 /16s and 217 /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: 1596 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3875 Total APNIC prefixes after maximum aggregation: 2028 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3877 Unique aggregates announced from the APNIC address blocks: 2250 APNIC Region origin ASes present in the Internet Routing Table: 454 APNIC Prefixes per ASN: 8.54 APNIC Region origin ASes announcing only one prefix: 192 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: 173 Number of APNIC addresses announced to Internet: 38847552 Equivalent to 2 /8s, 80 /16s and 196 /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: 5433 Total ARIN prefixes after maximum aggregation: 3243 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5442 Unique aggregates announced from the ARIN address blocks: 3656 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: 321 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: 71151104 Equivalent to 4 /8s, 61 /16s and 174 /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: 2615 RIPE Region origin ASes present in the Internet Routing Table: 625 RIPE Prefixes per ASN: 5.01 RIPE Region origin ASes announcing only one prefix: 305 RIPE Region transit ASes present in the Internet Routing Table: 97 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: 1169 Total LACNIC prefixes after maximum aggregation: 467 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1167 Unique aggregates announced from the LACNIC address blocks: 551 LACNIC Region origin ASes present in the Internet Routing Table: 151 LACNIC Prefixes per ASN: 7.73 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 21 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: 61 Number of LACNIC addresses announced to Internet: 3659680 Equivalent to 0 /8s, 55 /16s and 215 /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: 814 Total AfriNIC prefixes after maximum aggregation: 157 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 813 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 18.07 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 10 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: 2577152 Equivalent to 0 /8s, 39 /16s and 83 /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 623 2156 457 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 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 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 203 207 42 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 58 102 38 Fundacao Carlos Chagas Filho de Amparo 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 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR 20191 31 16 1 Pontificia Universidad Catolica de Chil 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 352 319 72 TENET-1, ZA 36914 200 82 3 KENET-AS, KE 8094 50 48 4 PUKNET, ZA 327700 40 16 1 MoRENet, MZ 327687 37 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 37074 10 7 7 UG-AS, GH 36982 8 33 8 UCT, ZA 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 623 2156 457 SINET-AS Research Organization of Infor 7497 425 177 19 CSTNET-AS-AP Computer Network Informati 2018 352 319 72 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 1916 203 207 42 Rede Nacional de Ensino e Pesquisa, BR 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 36914 200 82 3 KENET-AS, KE 1237 188 74 135 KREONET-AS-KR KISTI, KR 786 186 1774 183 JANET Jisc Services Limited, GB 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 352 280 TENET-1, ZA 5786 200 199 UPRENET, PR 36914 200 197 KENET-AS, KE 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 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 /16:1671 /17:296 /18:303 /19:450 /20:665 /21:741 /22:1152 /23:1207 /24:7597 /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 186 200 KENET-AS, KE 8895 172 177 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 36 40 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 29 32 HCCS, US 200521 29 47 SEAP-AGE, ES 1916 27 203 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 41:121 42:9 44:4 45:29 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 86:6 87:1 88:1 89:10 91:45 93:18 94:2 95:4 96:5 101:4 102:11 103:235 104:6 106:1 108:4 109:9 110:3 111:16 112:4 114:17 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:67 129:30 130:84 131:73 132:51 133:139 134:88 136:191 137:46 138:8 139:4 140:34 141:2 142:22 143:31 144:25 145:2 146:123 147:23 148:7 149:13 150:19 151:2 152:63 153:6 154:26 155:46 156:67 157:26 158:36 159:116 160:25 161:15 162:15 163:60 164:41 165:50 166:1 167:16 168:97 169:8 170:44 172:2 173:2 175:20 176:8 177:5 178:1 179:8 180:21 182:6 184:3 185:33 186:3 187:18 188:13 189:3 190:43 191:7 192:1183 193:184 194:107 195:58 196:148 197:112 198:332 199:190 200:235 201:38 202:368 203:283 204:282 205:96 206:144 207:131 208:43 209:92 210:178 211:2 212:173 213:3 216:50 217:13 218:5 219:13 220:12 222:5 223:2 End of report