IPv4 R&E Routing Table Report 20:20 GMT Mon 17 Mar, 2025 IPv4 BGP Table (R&E) as seen at Erdemnet. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Erdemnet/ Analysis Summary ---------------- BGP routing table entries examined: 22215 Prefixes after maximum aggregation (per Origin AS): 11739 Deaggregation factor: 1.89 Unique aggregates announced (without unneeded subnets): 11793 Number of IPv4 prefixes with a valid ROA: 8008 Number of IPv4 prefixes with an invalid ROA: 2654 Number of IPv4 prefixes with no ROA: 11553 Total ASes present in the Internet Routing Table: 2827 Prefixes per ASN: 7.86 Origin-only ASes present in the Internet Routing Table: 2456 Origin ASes announcing only one prefix: 1087 Transit ASes present in the Internet Routing Table: 371 Transit-only ASes present in the Internet Routing Table: 63 Paths with bogon ASNs present in the IPv4 Routing Table: 2185 Average AS path length visible in the Internet Routing Table: 6.2 Max AS path length visible: 26 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 2186 Number of instances of unregistered ASNs: 2186 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 721 Prefixes from 32-bit ASNs in the Routing Table: 1952 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: 4 Number of addresses announced to Internet: 190488320 Equivalent to 11 /8s, 90 /16s and 159 /24s Percentage of available address space announced: 5.1 Percentage of allocated address space announced: 5.1 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: 4844 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5604 Total APNIC prefixes after maximum aggregation: 2424 APNIC Deaggregation factor: 2.31 Prefixes being announced from the APNIC address blocks: 7787 Unique aggregates announced from the APNIC address blocks: 2953 APNIC Region origin ASes present in the Internet Routing Table: 640 APNIC Prefixes per ASN: 12.17 APNIC Region origin ASes announcing only one prefix: 265 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 260 Number of APNIC addresses announced to Internet: 39905024 Equivalent to 2 /8s, 96 /16s and 231 /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, 131072-155961 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: 8201 Total ARIN prefixes after maximum aggregation: 4525 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 8217 Unique aggregates announced from the ARIN address blocks: 4972 ARIN Region origin ASes present in the Internet Routing Table: 1251 ARIN Prefixes per ASN: 6.57 ARIN Region origin ASes announcing only one prefix: 450 ARIN Region transit ASes present in the Internet Routing Table: 159 Average ARIN Region AS path length visible: 7.4 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 216 Number of ARIN addresses announced to Internet: 85929216 Equivalent to 5 /8s, 31 /16s and 45 /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: 3603 Total RIPE prefixes after maximum aggregation: 2880 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3590 Unique aggregates announced from the RIPE address blocks: 2937 RIPE Region origin ASes present in the Internet Routing Table: 658 RIPE Prefixes per ASN: 5.46 RIPE Region origin ASes announcing only one prefix: 290 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 6.1 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 151 Number of RIPE addresses announced to Internet: 58045952 Equivalent to 3 /8s, 117 /16s and 182 /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: 1476 Total LACNIC prefixes after maximum aggregation: 540 LACNIC Deaggregation factor: 2.73 Prefixes being announced from the LACNIC address blocks: 1472 Unique aggregates announced from the LACNIC address blocks: 704 LACNIC Region origin ASes present in the Internet Routing Table: 155 LACNIC Prefixes per ASN: 9.50 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 8.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4191488 Equivalent to 0 /8s, 63 /16s and 245 /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: 1145 Total AfriNIC prefixes after maximum aggregation: 173 AfriNIC Deaggregation factor: 6.62 Prefixes being announced from the AfriNIC address blocks: 1144 Unique aggregates announced from the AfriNIC address blocks: 223 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 22.43 AfriNIC Region origin ASes announcing only one prefix: 29 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 7.2 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31 Number of AfriNIC addresses announced to Internet: 2413824 Equivalent to 0 /8s, 36 /16s and 213 /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 624 2170 464 SINET-AS Research Organization of Informa 9484 461 5 6 MOBINET-AS-MN Mobinet LLC. AS Mobinet Int 7497 452 180 24 CSTNET-AS-AP Computer Network Information 1237 193 74 147 KREONET-AS-KR KISTI, KR 58647 183 18 2 KAGAWAU-AS Kagawa University, JP 7575 174 297 117 AARNET-AS-AP Australian Academic and Rese 55824 146 19 20 NKN-CORE-NW NKN Core Network, IN 4538 142 4192 71 ERX-CERNET-BKB China Education and Resear 17882 135 8 35 UNIVISION-AS-AP UNIVISION LLC, MN 4850 80 0 1 DIGICOM-AS-AP Digicom LLC, MN Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 530 507 99 CENIC-2152, US 2920 226 44 49 LACOE, US 376 201 162 151 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 18558 140 18 5 NETBLK-RCOEK, US 81 129 519 34 NCREN, US 23024 99 7 17 OCDE, US 21976 90 34 16 NJEDGE-NET, US 237 86 542 51 MERIT-AS-14, US 1736 79 16 1 MU-AS, US Complete listing at https://bgp.nsrc.org/REN/Erdemnet/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 786 196 1750 188 JANET Jisc Services Limited, GB 559 114 533 104 SWITCH Peering requests: peering@switch.c 8895 108 24 5 ISU Internet Services Unit ISU, SA 1103 98 1743 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 90 26 70 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 3267 79 29 69 NIKS, RU 553 75 366 75 BELWUE BelWue-Koordination, DE Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 236 178 41 Rede Nacional de Ensino e Pesquisa, BR 28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M 11340 102 24 51 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 53 16 1 Red de Interconexion Universitaria, AR 61468 52 3 21 CEDIA, EC 2715 51 100 35 Fundacao Carlos Chagas Filho de Amparo a 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 28614 38 2 2 Fundacao Universidade Regional de Blumena 1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 548 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 8094 47 48 18 PUKNET, ZA 37215 35 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37661 13 8 5 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 327700 10 16 1 MoRENet, MZ 36982 8 33 8 UCT, ZA 37654 8 1 5 RwEdNet-AS, RW Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 65510 3890 3 996 >>UNKNOWN<< 2907 624 2170 464 SINET-AS Research Organization of Informa 36914 548 82 3 KENET-AS, KE 2152 530 507 99 CENIC-2152, US 9484 461 5 6 MOBINET-AS-MN Mobinet LLC. AS Mobinet Int 7497 452 180 24 CSTNET-AS-AP Computer Network Information 2018 374 318 69 TENET-1, ZA 680 284 1899 249 DFN Verein zur Foerderung eines Deutschen 1916 236 178 41 Rede Nacional de Ensino e Pesquisa, BR 2920 226 44 49 LACOE, US Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 548 545 KENET-AS, KE 9484 461 455 MOBINET-AS-MN Mobinet LLC. AS Mobinet Internet 2152 530 431 CENIC-2152, US 7497 452 428 CSTNET-AS-AP Computer Network Information Cente 2018 374 305 TENET-1, ZA 5786 199 198 UPRENET, PR 1916 236 195 Rede Nacional de Ensino e Pesquisa, BR 58647 183 181 KAGAWAU-AS Kagawa University, JP 2920 226 177 LACOE, US 2907 624 160 SINET-AS Research Organization of Information a Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65510 PRIVATE 45.117.32.24/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.40/29 9484 MOBINET-AS-MN Mobinet L 65001 PRIVATE 45.117.32.48/29 65510 -Private Use AS-, ZZ 65510 PRIVATE 45.117.32.56/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.64/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.72/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.80/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.88/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.96/29 9484 MOBINET-AS-MN Mobinet L 65510 PRIVATE 45.117.32.104/29 9484 MOBINET-AS-MN Mobinet L Complete listing at https://bgp.nsrc.org/REN/Erdemnet/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 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 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/Erdemnet/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 /10:1 /11:0 /12:10 /13:16 /14:32 /15:110 /16:1919 /17:401 /18:450 /19:569 /20:834 /21:848 /22:1472 /23:1603 /24:11306 /25:8 /26:6 /27:27 /28:89 /29:872 /30:1469 /31:6 /32:165 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 65510 1881 3890 -Private Use AS-, ZZ 36914 524 548 KENET-AS, KE 9484 364 461 MOBINET-AS-MN Mobinet LLC. AS Mobinet Internet Service Provider, MN 8895 105 108 ISU Internet Services Unit ISU, SA 65516 90 180 -Private Use AS-, ZZ 65001 87 180 -Private Use AS-, ZZ 4850 79 80 DIGICOM-AS-AP Digicom LLC, MN 2152 60 530 CENIC-2152, US 23024 38 99 OCDE, US 3267 35 79 NIKS, RU Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:2 14:93 23:8 24:3 27:4 31:1 35:9 36:2 37:8 38:11 40:1 41:222 42:12 43:8 44:4 45:45 46:4 47:1 49:12 50:2 59:23 60:6 61:3 62:8 63:32 64:45 65:5 66:73 67:39 68:11 69:16 70:2 71:1 72:8 74:54 76:34 77:10 78:3 79:9 80:13 81:24 82:6 83:8 84:8 85:51 86:5 87:1 89:10 91:41 92:2 93:14 94:2 95:2 96:5 97:1 98:2 102:12 103:432 104:79 108:8 109:5 111:21 112:16 113:1 114:24 116:9 117:61 118:33 119:37 121:27 122:24 123:8 124:43 125:5 128:57 129:37 130:98 131:64 132:66 133:157 134:106 136:200 137:98 138:58 139:15 140:31 141:3 142:27 143:25 144:25 145:2 146:129 147:55 148:198 149:11 150:69 151:11 152:138 153:14 154:45 155:84 156:130 157:28 158:29 159:117 160:35 161:16 162:23 163:61 164:11 165:48 167:26 168:119 169:7 170:94 171:2 172:2 173:6 175:16 177:6 179:13 180:16 181:1 182:12 184:2 185:50 186:3 187:24 188:14 189:3 190:33 191:13 192:1391 193:301 194:141 195:82 196:147 197:332 198:532 199:248 200:333 201:37 202:792 203:452 204:391 205:175 206:208 207:310 208:65 209:160 210:223 211:3 212:145 213:4 216:93 217:12 218:24 219:6 220:16 222:3 223:4 End of report