Global R&E Routing Table Report 18:00 GMT Thu 25 Nov, 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: 14241 Prefixes after maximum aggregation (per Origin AS): 8221 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 9062 Total ASes present in the Internet Routing Table: 2135 Prefixes per ASN: 6.67 Origin-only ASes present in the Internet Routing Table: 1833 Origin ASes announcing only one prefix: 872 Transit ASes present in the Internet Routing Table: 302 Transit-only ASes present in the Internet Routing Table: 36 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 15 Max AS path prepend of ASN ( 5474) 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: 37907 Number of 32-bit ASNs visible in the Routing Table: 478 Prefixes from 32-bit ASNs in the Routing Table: 1369 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: 0 Number of addresses announced to Internet: 176052672 Equivalent to 10 /8s, 126 /16s and 89 /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: 1606 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3877 Total APNIC prefixes after maximum aggregation: 2033 APNIC Deaggregation factor: 1.91 Prefixes being announced from the APNIC address blocks: 3879 Unique aggregates announced from the APNIC address blocks: 2244 APNIC Region origin ASes present in the Internet Routing Table: 450 APNIC Prefixes per ASN: 8.62 APNIC Region origin ASes announcing only one prefix: 190 APNIC Region transit ASes present in the Internet Routing Table: 49 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 168 Number of APNIC addresses announced to Internet: 44598848 Equivalent to 2 /8s, 168 /16s and 134 /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: 5316 Total ARIN prefixes after maximum aggregation: 3142 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 5327 Unique aggregates announced from the ARIN address blocks: 3529 ARIN Region origin ASes present in the Internet Routing Table: 855 ARIN Prefixes per ASN: 6.23 ARIN Region origin ASes announcing only one prefix: 310 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: 111 Number of ARIN addresses announced to Internet: 70084352 Equivalent to 4 /8s, 45 /16s and 103 /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: 3086 Total RIPE prefixes after maximum aggregation: 2467 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3079 Unique aggregates announced from the RIPE address blocks: 2567 RIPE Region origin ASes present in the Internet Routing Table: 599 RIPE Prefixes per ASN: 5.14 RIPE Region origin ASes announcing only one prefix: 291 RIPE Region transit ASes present in the Internet Routing Table: 97 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 117 Number of RIPE addresses announced to Internet: 55668960 Equivalent to 3 /8s, 81 /16s and 112 /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: 1043 Total LACNIC prefixes after maximum aggregation: 416 LACNIC Deaggregation factor: 2.51 Prefixes being announced from the LACNIC address blocks: 1041 Unique aggregates announced from the LACNIC address blocks: 496 LACNIC Region origin ASes present in the Internet Routing Table: 143 LACNIC Prefixes per ASN: 7.28 LACNIC Region origin ASes announcing only one prefix: 56 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: 58 Number of LACNIC addresses announced to Internet: 3068064 Equivalent to 0 /8s, 46 /16s and 208 /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: 915 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 5.75 Prefixes being announced from the AfriNIC address blocks: 914 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.65 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2632448 Equivalent to 0 /8s, 40 /16s and 43 /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 619 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 7575 176 329 122 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 172 4192 72 ERX-CERNET-BKB China Education and Rese 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 5786 195 16 1 UPRENET, PR 2152 157 507 85 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 112 34 6 LACOE, US 376 87 7 63 RISQ-AS, CA 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 680 278 1998 238 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 97 1520 84 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 36 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 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 20191 31 16 1 Pontificia Universidad Catolica de Chil 28571 28 19 18 UNIVERSIDADE DE SAO PAULO, BR 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 337 319 71 TENET-1, ZA 36914 198 82 3 KENET-AS, KE 327687 124 28 3 RENU, UG 8094 50 48 4 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 12 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 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 619 2156 457 SINET-AS Research Organization of Infor 7497 424 177 19 CSTNET-AS-AP Computer Network Informati 2018 337 319 71 TENET-1, ZA 680 278 1998 238 DFN Verein zur Foerderung eines Deutsch 36914 198 82 3 KENET-AS, KE 5786 195 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 36 Associacao Rede Nacional de Ensino e Pe 8895 177 24 4 ISU Internet Services Unit ISU, SA 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 337 266 TENET-1, ZA 36914 198 195 KENET-AS, KE 5786 195 194 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 177 173 ISU Internet Services Unit ISU, SA 1916 181 145 Associacao Rede Nacional de Ensino e Pesquisa, 18558 136 132 NETBLK-RCOEK, US 327687 124 121 RENU, UG 55824 128 106 NKN-CORE-NW NKN Core Network, IN 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 Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 0.0.0.0/0 36884 MAROCCONNECT, MA Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-dsua 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 /13:19 /14:35 /15:107 /16:1669 /17:283 /18:295 /19:426 /20:652 /21:716 /22:1109 /23:1192 /24:7535 /25:73 /26:61 /27:54 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 184 198 KENET-AS, KE 8895 172 177 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 38 43 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 29 32 HCCS, US 200521 29 48 SEAP-AGE, ES 37215 28 34 MAREN, MW 1916 27 181 Associacao Rede Nacional de Ensino e Pesquisa, 30220 25 25 SWTELCOOP, US 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 41:150 42:9 44:4 45:32 46:6 49:10 58:4 59:10 60:4 61:2 62:6 63:4 64:12 66:23 67:34 68:1 69:17 72:10 74:16 76:1 77:6 78:3 79:10 80:10 81:26 82:1 83:7 84:3 85:20 86:6 87:1 88:1 89:10 91:45 93:18 94:2 95:5 96:5 101:4 102:15 103:219 104:6 106:1 108:4 109:9 110:3 111:16 112:4 114:18 116:5 117:2 118:17 119:21 121:27 122:8 123:8 124:39 125:1 128:66 129:30 130:84 131:79 132:49 133:138 134:88 136:186 137:103 138:8 139:4 140:34 141:2 142:22 143:28 144:25 145:1 146:122 147:24 148:7 149:13 150:19 151:2 152:23 153:6 154:24 155:46 156:67 157:25 158:39 159:116 160:25 161:15 162:13 163:60 164:37 165:53 166:1 167:11 168:91 169:8 170:41 172:2 173:2 175:26 176:8 177:6 178:1 179:10 180:21 182:6 184:3 185:34 186:3 187:17 188:13 189:3 190:43 191:6 192:1156 193:182 194:102 195:58 196:172 197:105 198:328 199:179 200:222 201:38 202:363 203:279 204:274 205:112 206:130 207:128 208:43 209:94 210:177 211:2 212:171 213:2 216:50 217:13 218:5 219:13 220:12 222:4 223:2 End of report