Global R&E Routing Table Report 18:00 GMT Thu 09 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: 14439 Prefixes after maximum aggregation (per Origin AS): 8435 Deaggregation factor: 1.71 Unique aggregates announced (without unneeded subnets): 9362 Total ASes present in the Internet Routing Table: 2178 Prefixes per ASN: 6.63 Origin-only ASes present in the Internet Routing Table: 1876 Origin ASes announcing only one prefix: 884 Transit ASes present in the Internet Routing Table: 302 Transit-only ASes present in the Internet Routing Table: 39 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 16 Max AS path prepend of ASN (211089) 11 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 38017 Number of 32-bit ASNs visible in the Routing Table: 493 Prefixes from 32-bit ASNs in the Routing Table: 1312 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: 177247424 Equivalent to 10 /8s, 144 /16s and 148 /24s Percentage of available address space announced: 4.8 Percentage of allocated address space announced: 4.8 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: 1574 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3898 Total APNIC prefixes after maximum aggregation: 2037 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3899 Unique aggregates announced from the APNIC address blocks: 2247 APNIC Region origin ASes present in the Internet Routing Table: 454 APNIC Prefixes per ASN: 8.59 APNIC Region origin ASes announcing only one prefix: 193 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: 172 Number of APNIC addresses announced to Internet: 44411712 Equivalent to 2 /8s, 165 /16s and 171 /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: 5520 Total ARIN prefixes after maximum aggregation: 3298 ARIN Deaggregation factor: 1.67 Prefixes being announced from the ARIN address blocks: 5532 Unique aggregates announced from the ARIN address blocks: 3738 ARIN Region origin ASes present in the Internet Routing Table: 874 ARIN Prefixes per ASN: 6.33 ARIN Region origin ASes announcing only one prefix: 313 ARIN Region transit ASes present in the Internet Routing Table: 115 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: 115 Number of ARIN addresses announced to Internet: 71511808 Equivalent to 4 /8s, 67 /16s and 47 /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: 3119 Total RIPE prefixes after maximum aggregation: 2500 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3111 Unique aggregates announced from the RIPE address blocks: 2601 RIPE Region origin ASes present in the Internet Routing Table: 616 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 298 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 16 Number of RIPE region 32-bit ASNs visible in the Routing Table: 121 Number of RIPE addresses announced to Internet: 55634912 Equivalent to 3 /8s, 80 /16s and 235 /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: 1005 Total LACNIC prefixes after maximum aggregation: 408 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1003 Unique aggregates announced from the LACNIC address blocks: 481 LACNIC Region origin ASes present in the Internet Routing Table: 145 LACNIC Prefixes per ASN: 6.92 LACNIC Region origin ASes announcing only one prefix: 60 LACNIC Region transit ASes present in the Internet Routing Table: 20 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60 Number of LACNIC addresses announced to Internet: 3036832 Equivalent to 0 /8s, 46 /16s and 86 /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: 893 Total AfriNIC prefixes after maximum aggregation: 188 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 892 Unique aggregates announced from the AfriNIC address blocks: 294 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 18.98 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2651904 Equivalent to 0 /8s, 40 /16s and 119 /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 457 SINET-AS Research Organization of Infor 7497 424 177 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 1659 51 1434 33 ERX-TANET-ASN1 Taiwan Academic Network 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR 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 376 201 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 145 507 85 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 112 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 3477 65 71 38 NOAA-NWAVE, US 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 680 280 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 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 1653 52 167 49 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 181 178 35 Rede Nacional de Ensino e Pesquisa, BR 11340 95 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 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 3597 23 2 17 Fundacion InnovaT, AR 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 346 319 72 TENET-1, ZA 36914 212 82 3 KENET-AS, KE 2561 73 5 32 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 327687 38 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 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 457 SINET-AS Research Organization of Infor 7497 424 177 19 CSTNET-AS-AP Computer Network Informati 2018 346 319 72 TENET-1, ZA 680 280 1950 246 DFN Verein zur Foerderung eines Deutsch 36914 212 82 3 KENET-AS, KE 376 201 178 151 RISQ-AS, CA 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 181 178 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 424 405 CSTNET-AS-AP Computer Network Information Cente 2018 346 274 TENET-1, ZA 36914 212 209 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 181 146 Rede Nacional de Ensino e Pesquisa, BR 18558 135 131 NETBLK-RCOEK, US 55824 128 106 NKN-CORE-NW NKN Core Network, IN 2920 112 106 LACOE, US 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 29955 UNALLOCATED 192.104.1.0/24 2495 KANREN, US 29955 UNALLOCATED 198.252.8.0/21 2495 KANREN, 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 /11:1 /12:10 /13:18 /14:34 /15:107 /16:1682 /17:289 /18:305 /19:452 /20:668 /21:730 /22:1119 /23:1194 /24:7642 /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 198 212 KENET-AS, KE 8895 172 177 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 48 SEAP-AGE, ES 1916 27 181 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 41:116 42:9 44:4 45:29 46:6 49:10 58:7 59:10 60:4 61:2 62:6 63:4 64:12 66:24 67:34 68:1 69:17 71:1 72:10 74:17 76:4 77:6 78:3 79:10 80:11 81:26 82:2 83:7 84:3 85:23 86:7 87:1 88:1 89:10 91:45 93:18 94:2 95:6 96:5 101:4 102:12 103:230 104:7 106:1 108:4 109:9 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:67 129:30 130:84 131:79 132:46 133:139 134:89 136:191 137:46 138:8 139:4 140:34 141:2 142:22 143:31 144:25 145:1 146:121 147:24 148:7 149:13 150:19 151:2 152:22 153:6 154:25 155:46 156:67 157:25 158:39 159:116 160:25 161:15 162:15 163:61 164:40 165:53 166:1 167:11 168:98 169:8 170:44 172:2 173:2 175:20 176:8 177:5 178:1 179:8 180:21 182:6 184:2 185:35 186:3 187:17 188:13 189:3 190:43 192:1190 193:222 194:108 195:85 196:150 197:118 198:340 199:182 200:215 201:38 202:363 203:278 204:284 205:142 206:148 207:131 208:43 209:91 210:178 211:2 212:173 213:3 216:50 217:13 218:5 219:13 220:12 222:5 223:2 End of report