IPv4 R&E Routing Table Report 17:00 GMT Sun 28 Jul, 2024 IPv4 BGP Table (R&E) as seen at GEANT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 19113 Prefixes after maximum aggregation (per Origin AS): 10695 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 11797 Number of IPv4 prefixes with a valid ROA: 6059 Number of IPv4 prefixes with an invalid ROA: 8 Number of IPv4 prefixes with no ROA: 13046 Total ASes present in the Internet Routing Table: 2758 Prefixes per ASN: 6.93 Origin-only ASes present in the Internet Routing Table: 2400 Origin ASes announcing only one prefix: 1062 Transit ASes present in the Internet Routing Table: 358 Transit-only ASes present in the Internet Routing Table: 59 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 17 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 45047 Number of 32-bit ASNs visible in the Routing Table: 630 Prefixes from 32-bit ASNs in the Routing Table: 1755 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 5 Number of addresses announced to Internet: 202437936 Equivalent to 12 /8s, 16 /16s and 245 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 2310 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4772 Total APNIC prefixes after maximum aggregation: 2297 APNIC Deaggregation factor: 2.08 Prefixes being announced from the APNIC address blocks: 4769 Unique aggregates announced from the APNIC address blocks: 2627 APNIC Region origin ASes present in the Internet Routing Table: 554 APNIC Prefixes per ASN: 8.61 APNIC Region origin ASes announcing only one prefix: 238 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 205 Number of APNIC addresses announced to Internet: 45695040 Equivalent to 2 /8s, 185 /16s and 64 /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, 131072-153913 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: 8239 Total ARIN prefixes after maximum aggregation: 4757 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 8252 Unique aggregates announced from the ARIN address blocks: 5241 ARIN Region origin ASes present in the Internet Routing Table: 1250 ARIN Prefixes per ASN: 6.60 ARIN Region origin ASes announcing only one prefix: 433 ARIN Region transit ASes present in the Internet Routing Table: 151 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 197 Number of ARIN addresses announced to Internet: 92367712 Equivalent to 5 /8s, 129 /16s and 107 /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, 393216-402332 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: 3680 Total RIPE prefixes after maximum aggregation: 2948 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3671 Unique aggregates announced from the RIPE address blocks: 2995 RIPE Region origin ASes present in the Internet Routing Table: 702 RIPE Prefixes per ASN: 5.23 RIPE Region origin ASes announcing only one prefix: 316 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 153 Number of RIPE addresses announced to Internet: 57800592 Equivalent to 3 /8s, 113 /16s and 247 /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 196608-216475 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: 1378 Total LACNIC prefixes after maximum aggregation: 535 LACNIC Deaggregation factor: 2.58 Prefixes being announced from the LACNIC address blocks: 1376 Unique aggregates announced from the LACNIC address blocks: 725 LACNIC Region origin ASes present in the Internet Routing Table: 157 LACNIC Prefixes per ASN: 8.76 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4127744 Equivalent to 0 /8s, 62 /16s and 252 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1041 Total AfriNIC prefixes after maximum aggregation: 155 AfriNIC Deaggregation factor: 6.72 Prefixes being announced from the AfriNIC address blocks: 1040 Unique aggregates announced from the AfriNIC address blocks: 205 AfriNIC Region origin ASes present in the Internet Routing Table: 33 AfriNIC Prefixes per ASN: 31.52 AfriNIC Region origin ASes announcing only one prefix: 17 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 12 Number of AfriNIC addresses announced to Internet: 2436352 Equivalent to 0 /8s, 37 /16s and 45 /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 601 2162 465 SINET-AS Research Organization of Informa 7497 448 180 24 CSTNET-AS-AP Computer Network Information 1237 192 74 144 KREONET-AS-KR KISTI, KR 4538 192 4193 75 ERX-CERNET-BKB China Education and Resear 58647 183 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Rese 55824 131 18 19 NKN-CORE-NW NKN Core Network, IN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 68 37 10 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 202 162 151 RISQ-AS, CA 668 199 631 168 DNIC-AS-00668, US 5786 198 16 1 UPRENET, PR 2920 176 34 7 LACOE, US 270 162 345 88 AS270, US 2152 151 507 97 CENIC-2152, US 18558 140 18 4 NETBLK-RCOEK, US 81 133 517 33 NCREN, US 32440 116 35 18 LONI, US 23024 96 7 21 OCDE, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 282 1899 250 DFN Verein zur Foerderung eines Deutschen 786 182 1767 181 JANET Jisc Services Limited, GB 8895 136 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 SWITCH Peering requests: peering@switch.c 1103 96 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 90 26 70 ROEDUNET, RO 3267 88 27 70 NIKS, RU 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 553 78 462 78 BELWUE BelWue-Koordination, DE Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 158 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, M 11340 109 25 52 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 4270 47 16 1 Red de Interconexion Universitaria, AR 2715 45 99 34 Fundacao Carlos Chagas Filho de Amparo a 61468 45 5 15 CEDIA, EC 3596 40 8 4 Universidad Autonoma Metropolitana, MX 28614 38 2 2 Fundacao Universidade Regional de Blumena Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 447 82 3 KENET-AS, KE 2018 380 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 327700 46 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37661 13 8 5 NRaE1-AS, NG 30983 12 4 2 MARWAN-AS, MA 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 601 2162 465 SINET-AS Research Organization of Informa 7497 448 180 24 CSTNET-AS-AP Computer Network Information 36914 447 82 3 KENET-AS, KE 2018 380 319 71 TENET-1, ZA 680 282 1899 250 DFN Verein zur Foerderung eines Deutschen 376 202 162 151 RISQ-AS, CA 668 199 631 168 DNIC-AS-00668, US 5786 198 16 1 UPRENET, PR 1237 192 74 144 KREONET-AS-KR KISTI, KR 4538 192 4193 75 ERX-CERNET-BKB China Education and Resear Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 447 444 KENET-AS, KE 7497 448 424 CSTNET-AS-AP Computer Network Information Cente 2018 380 309 TENET-1, ZA 5786 198 197 UPRENET, PR 58647 183 181 KAGAWAU-AS Kagawa University, JP 2920 176 169 LACOE, US 18558 140 136 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 4538 192 117 ERX-CERNET-BKB China Education and Research Net 1916 158 115 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/GEANT/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65111 PRIVATE 62.40.99.40/29 20965 GEANT The GEANT IP Serv 64500 DOCUMENT 62.40.99.58/32 20965 GEANT The GEANT IP Serv 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.192.0/21 Origin: 37661 NRaE1-AS, NG 164.160.192.0/21 Transit: 37288 WACREN, SN 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /10:1 /11:1 /12:10 /13:19 /14:35 /15:118 /16:2015 /17:423 /18:457 /19:572 /20:878 /21:893 /22:1411 /23:1538 /24:10541 /25:50 /26:45 /27:67 /28:8 /29:14 /30:11 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 437 447 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 32440 82 116 LONI, US 3267 42 88 NIKS, RU 327700 40 46 MoRENet, MZ 23024 38 96 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:1 14:90 23:4 24:3 31:1 35:3 37:8 38:10 40:1 41:172 42:17 44:5 45:50 46:5 47:1 49:10 50:3 52:1 58:17 59:20 60:6 61:3 62:14 63:33 64:44 65:1 66:36 67:41 68:10 69:19 70:2 71:1 72:7 74:51 76:41 77:10 78:3 79:10 80:16 81:25 82:6 83:7 84:11 85:46 86:10 87:1 89:11 91:49 92:2 93:13 94:2 95:2 96:5 97:1 98:2 101:4 102:6 103:274 104:77 108:8 109:8 111:16 113:2 114:24 116:8 117:61 118:35 119:23 121:28 122:8 123:8 124:43 125:5 128:84 129:36 130:93 131:62 132:67 133:158 134:108 136:197 137:52 138:58 139:5 140:37 141:3 142:25 143:25 144:25 145:2 146:135 147:63 148:193 149:11 150:40 151:9 152:135 153:15 154:37 155:63 156:139 157:21 158:35 159:121 160:30 161:16 162:22 163:60 164:14 165:47 166:1 167:10 168:120 169:6 170:89 172:2 173:6 175:29 176:8 177:5 179:13 180:16 181:1 182:9 184:6 185:55 186:3 187:18 188:13 189:3 190:18 191:13 192:1479 193:274 194:146 195:94 196:147 197:315 198:469 199:276 200:272 201:37 202:644 203:438 204:368 205:133 206:195 207:203 208:68 209:105 210:215 211:15 212:161 213:7 214:8 216:91 217:9 218:22 219:5 220:17 222:3 223:14 End of report