IPv4 R&E Routing Table Report 17:00 GMT Thu 16 Jan, 2025 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: 19490 Prefixes after maximum aggregation (per Origin AS): 10650 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 11690 Number of IPv4 prefixes with a valid ROA: 7437 Number of IPv4 prefixes with an invalid ROA: 7 Number of IPv4 prefixes with no ROA: 12046 Total ASes present in the Internet Routing Table: 2771 Prefixes per ASN: 7.03 Origin-only ASes present in the Internet Routing Table: 2398 Origin ASes announcing only one prefix: 1071 Transit ASes present in the Internet Routing Table: 373 Transit-only ASes present in the Internet Routing Table: 65 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 3.9 Max AS path length visible: 18 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: 46067 Number of 32-bit ASNs visible in the Routing Table: 657 Prefixes from 32-bit ASNs in the Routing Table: 1777 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: 3 Number of addresses announced to Internet: 199751824 Equivalent to 11 /8s, 231 /16s and 248 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 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: 2412 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4699 Total APNIC prefixes after maximum aggregation: 2252 APNIC Deaggregation factor: 2.09 Prefixes being announced from the APNIC address blocks: 4698 Unique aggregates announced from the APNIC address blocks: 2593 APNIC Region origin ASes present in the Internet Routing Table: 556 APNIC Prefixes per ASN: 8.45 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 206 Number of APNIC addresses announced to Internet: 45536096 Equivalent to 2 /8s, 182 /16s and 211 /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: 8513 Total ARIN prefixes after maximum aggregation: 4761 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 8525 Unique aggregates announced from the ARIN address blocks: 5193 ARIN Region origin ASes present in the Internet Routing Table: 1251 ARIN Prefixes per ASN: 6.81 ARIN Region origin ASes announcing only one prefix: 442 ARIN Region transit ASes present in the Internet Routing Table: 149 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 198 Number of ARIN addresses announced to Internet: 90088032 Equivalent to 5 /8s, 94 /16s and 162 /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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 3670 Total RIPE prefixes after maximum aggregation: 2919 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3663 Unique aggregates announced from the RIPE address blocks: 2965 RIPE Region origin ASes present in the Internet Routing Table: 692 RIPE Prefixes per ASN: 5.29 RIPE Region origin ASes announcing only one prefix: 312 RIPE Region transit ASes present in the Internet Routing Table: 113 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: 160 Number of RIPE addresses announced to Internet: 57563536 Equivalent to 3 /8s, 110 /16s and 89 /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, 53/8, 57/8, 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: 1452 Total LACNIC prefixes after maximum aggregation: 536 LACNIC Deaggregation factor: 2.71 Prefixes being announced from the LACNIC address blocks: 1449 Unique aggregates announced from the LACNIC address blocks: 705 LACNIC Region origin ASes present in the Internet Routing Table: 154 LACNIC Prefixes per ASN: 9.41 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64 Number of LACNIC addresses announced to Internet: 4136000 Equivalent to 0 /8s, 63 /16s and 28 /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: 1153 Total AfriNIC prefixes after maximum aggregation: 179 AfriNIC Deaggregation factor: 6.44 Prefixes being announced from the AfriNIC address blocks: 1152 Unique aggregates announced from the AfriNIC address blocks: 231 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 22.59 AfriNIC Region origin ASes announcing only one prefix: 29 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 2.8 Max AfriNIC Region AS path length visible: 18 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 29 Number of AfriNIC addresses announced to Internet: 2425600 Equivalent to 0 /8s, 37 /16s and 3 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 642 2202 464 SINET-AS Research Organization of Informa 7497 449 180 24 CSTNET-AS-AP Computer Network Information 1237 194 74 145 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 297 115 AARNET-AS-AP Australian Academic and Rese 55824 146 19 20 NKN-CORE-NW NKN Core Network, IN 4538 140 4192 70 ERX-CERNET-BKB China Education and Resear 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 61 35 9 UNINET-AS-AP UNINET-, TH 2697 59 4 34 ERX-ERNET-AS Education and Research Netwo 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 2152 513 507 99 CENIC-2152, US 2920 226 44 49 LACOE, US 376 201 162 150 RISQ-AS, CA 668 197 628 168 DNIC-AS-00668, US 5786 170 16 1 UPRENET, PR 18558 140 18 5 NETBLK-RCOEK, US 81 129 519 34 NCREN, US 23024 97 7 19 OCDE, US 21976 88 34 14 NJEDGE-NET, US 237 82 541 48 MERIT-AS-14, 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 680 284 1899 249 DFN Verein zur Foerderung eines Deutschen 786 185 1767 182 JANET Jisc Services Limited, GB 8895 130 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch.c 1103 95 1487 82 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 26 73 ROEDUNET, RO 3267 90 30 72 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 219 178 44 Rede Nacional de Ensino e Pesquisa, BR 28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M 11340 109 25 52 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 61468 52 5 17 CEDIA, EC 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 2715 46 99 35 Fundacao Carlos Chagas Filho de Amparo a 4270 46 16 1 Red de Interconexion Universitaria, AR 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 547 82 3 KENET-AS, KE 2018 379 319 71 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 30983 12 4 2 MARWAN-AS, MA 37661 12 8 4 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 327700 11 16 1 MoRENet, MZ 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 642 2202 464 SINET-AS Research Organization of Informa 36914 547 82 3 KENET-AS, KE 2152 513 507 99 CENIC-2152, US 7497 449 180 24 CSTNET-AS-AP Computer Network Information 2018 379 319 71 TENET-1, ZA 680 284 1899 249 DFN Verein zur Foerderung eines Deutschen 2920 226 44 49 LACOE, US 1916 219 178 44 Rede Nacional de Ensino e Pesquisa, BR 376 201 162 150 RISQ-AS, CA 668 197 628 168 DNIC-AS-00668, US 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 547 544 KENET-AS, KE 7497 449 425 CSTNET-AS-AP Computer Network Information Cente 2152 513 414 CENIC-2152, US 2018 379 308 TENET-1, ZA 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 226 177 LACOE, US 1916 219 175 Rede Nacional de Ensino e Pesquisa, BR 5786 170 169 UPRENET, PR 18558 140 135 NETBLK-RCOEK, US 55824 146 126 NKN-CORE-NW NKN Core Network, IN 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 65111 PRIVATE 62.40.117.18/31 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 202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U 202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH 203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University 203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /13:18 /14:35 /15:118 /16:1978 /17:414 /18:458 /19:581 /20:867 /21:910 /22:1451 /23:1592 /24:10867 /25:48 /26:68 /27:37 /28:6 /29:14 /30:10 /31:1 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 523 547 KENET-AS, KE 8895 125 130 ISU Internet Services Unit ISU, SA 1916 60 219 Rede Nacional de Ensino e Pesquisa, BR 2152 59 513 CENIC-2152, US 3267 41 90 NIKS, RU 23024 37 97 OCDE, US 32440 33 58 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 31 55 SEAP-AGE, ES 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 14:93 23:6 24:2 31:1 35:3 37:8 38:10 41:224 42:11 44:4 45:48 46:4 47:1 49:11 50:2 52:1 59:19 60:6 61:3 62:14 63:32 64:44 65:4 66:35 67:39 68:12 69:18 70:2 71:1 72:7 74:50 76:37 77:10 78:3 79:10 80:15 81:25 82:7 83:7 84:11 85:46 86:7 87:1 89:11 91:42 92:2 93:13 94:2 95:2 96:5 97:1 98:2 102:11 103:292 104:78 108:8 109:5 111:21 113:1 114:24 116:7 117:61 118:32 119:23 121:27 122:8 123:8 124:42 125:5 128:59 129:37 130:96 131:65 132:66 133:155 134:109 136:170 137:96 138:58 139:5 140:33 141:3 142:40 143:25 144:26 145:2 146:136 147:63 148:198 149:13 150:70 151:9 152:129 153:14 154:42 155:64 156:135 157:24 158:30 159:117 160:33 161:17 162:22 163:62 164:11 165:49 167:26 168:118 169:7 170:88 172:2 173:7 175:16 177:6 179:13 180:16 181:1 182:11 184:6 185:52 186:3 187:22 188:14 189:3 190:34 191:13 192:1411 193:280 194:137 195:116 196:146 197:332 198:542 199:276 200:267 201:36 202:639 203:434 204:387 205:176 206:211 207:304 208:62 209:151 210:219 211:3 212:166 213:7 214:8 216:92 217:12 218:22 219:6 220:16 222:2 223:15 End of report