IPv4 R&E Routing Table Report 20:30 GMT Wed 16 Apr, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 159754 Prefixes after maximum aggregation (per Origin AS): 64305 Deaggregation factor: 2.48 Unique aggregates announced (without unneeded subnets): 91312 Number of IPv4 prefixes with a valid ROA: 88006 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71687 Total ASes present in the Internet Routing Table: 14723 Prefixes per ASN: 10.85 Origin-only ASes present in the Internet Routing Table: 12468 Origin ASes announcing only one prefix: 5978 Transit ASes present in the Internet Routing Table: 2255 Transit-only ASes present in the Internet Routing Table: 480 Paths with bogon ASNs present in the IPv4 Routing Table: 3 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 81 Number of instances of unregistered ASNs: 81 Number of 32-bit ASNs allocated by the RIRs: 46209 Number of 32-bit ASNs visible in the Routing Table: 7335 Prefixes from 32-bit ASNs in the Routing Table: 30291 Number of bogon 32-bit ASNs visible in the Routing Table: 6 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 50 Number of addresses announced to Internet: 506406656 Equivalent to 30 /8s, 47 /16s and 39 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 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: 39291 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78558 Total APNIC prefixes after maximum aggregation: 25601 APNIC Deaggregation factor: 3.07 Prefixes being announced from the APNIC address blocks: 76699 Unique aggregates announced from the APNIC address blocks: 37398 APNIC Region origin ASes present in the Internet Routing Table: 5041 APNIC Prefixes per ASN: 15.22 APNIC Region origin ASes announcing only one prefix: 1870 APNIC Region transit ASes present in the Internet Routing Table: 741 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3240 Number of APNIC addresses announced to Internet: 190098944 Equivalent to 11 /8s, 84 /16s and 174 /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: 26717 Total ARIN prefixes after maximum aggregation: 14752 ARIN Deaggregation factor: 1.81 Prefixes being announced from the ARIN address blocks: 26411 Unique aggregates announced from the ARIN address blocks: 20277 ARIN Region origin ASes present in the Internet Routing Table: 2081 ARIN Prefixes per ASN: 12.69 ARIN Region origin ASes announcing only one prefix: 971 ARIN Region transit ASes present in the Internet Routing Table: 195 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 452 Number of ARIN addresses announced to Internet: 167496960 Equivalent to 9 /8s, 251 /16s and 205 /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: 39936 Total RIPE prefixes after maximum aggregation: 18856 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40778 Unique aggregates announced from the RIPE address blocks: 25628 RIPE Region origin ASes present in the Internet Routing Table: 4677 RIPE Prefixes per ASN: 8.72 RIPE Region origin ASes announcing only one prefix: 2155 RIPE Region transit ASes present in the Internet Routing Table: 688 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1643 Number of RIPE addresses announced to Internet: 124609792 Equivalent to 7 /8s, 109 /16s and 101 /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: 12603 Total LACNIC prefixes after maximum aggregation: 4541 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 12010 Unique aggregates announced from the LACNIC address blocks: 5852 LACNIC Region origin ASes present in the Internet Routing Table: 2283 LACNIC Prefixes per ASN: 5.26 LACNIC Region origin ASes announcing only one prefix: 927 LACNIC Region transit ASes present in the Internet Routing Table: 493 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1924 Number of LACNIC addresses announced to Internet: 18442240 Equivalent to 1 /8s, 25 /16s and 104 /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: 1859 Total AfriNIC prefixes after maximum aggregation: 497 AfriNIC Deaggregation factor: 3.74 Prefixes being announced from the AfriNIC address blocks: 3806 Unique aggregates announced from the AfriNIC address blocks: 2125 AfriNIC Region origin ASes present in the Internet Routing Table: 138 AfriNIC Prefixes per ASN: 27.58 AfriNIC Region origin ASes announcing only one prefix: 55 AfriNIC Region transit ASes present in the Internet Routing Table: 42 Average AfriNIC Region AS path length visible: 7.5 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 76 Number of AfriNIC addresses announced to Internet: 5727488 Equivalent to 0 /8s, 87 /16s and 101 /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 9808 10172 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4159 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 4766 2028 6036 949 KIXS-AS-KR Korea Telecom, KR 45609 1837 823 326 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1594 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1573 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication 9919 967 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2253 309 873 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2234 3096 507 CHARTER-20115, US 16509 2205 3545 1266 AMAZON-02, US 11492 1882 130 1028 CABLEONE, US 714 1223 4391 8 APPLE-ENGINEERING, US 8075 747 16019 631 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 574 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 383 1416 212 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2309 1997 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 917 639 326 SAUDINETSTC-AS, SA 49505 858 92 356 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 607 38 271 TIMEWEB-AS, RU 9198 460 171 189 KAZTELECOM-AS, KZ 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1867 679 242 UNINET, MX 7738 605 1807 67 V tal, BR 8167 342 1089 44 V tal, BR 1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 217 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 128 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 551 82 3 KENET-AS, KE 2018 348 318 68 TENET-1, ZA 36873 200 83 32 VNL1-AS, NG 15399 129 12 61 WANANCHI-, KE 30999 74 25 30 EMTEL-AS-AP, MU 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37531 20 2 16 AIRTEL-NIGER, NE Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10172 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4159 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 12389 2309 1997 781 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2255 1085 454 VIETEL-AS-AP Viettel Group, VN 30036 2253 309 873 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2234 3096 507 CHARTER-20115, US 16509 2205 3545 1266 AMAZON-02, US 4766 2028 6036 949 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4159 3894 BBIL-AP BHARTI Airtel Ltd., IN 24560 2856 2319 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2255 1801 VIETEL-AS-AP Viettel Group, VN 20115 2234 1727 CHARTER-20115, US 8151 1867 1625 UNINET, MX 12389 2309 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1837 1511 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1573 1499 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1484 1431 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 36288 UNALLOCATED 64.79.154.0/24 293 ESNET, US 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.219.4.0/22 Origin: 328932 RESERVED, ZZ 102.219.4.0/22 Transit: 36873 VNL1-AS, NG 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:48 /13:82 /14:167 /15:396 /16:2481 /17:1324 /18:2813 /19:4414 /20:7581 /21:9437 /22:17337 /23:16525 /24:97119 /25:1 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 1958 2253 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1405 2309 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1314 1882 CABLEONE, US 8151 1029 1867 UNINET, MX 49505 594 858 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 551 2234 CHARTER-20115, US 36914 527 551 KENET-AS, KE 16509 493 2205 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:199 2:328 3:102 5:1080 8:60 12:76 13:86 14:390 15:58 16:63 17:315 18:72 20:28 23:722 24:595 25:2 27:616 31:534 32:2 34:3 35:37 36:1345 37:638 38:524 39:696 40:1 41:256 42:147 43:658 44:22 45:2524 46:768 47:63 49:207 50:302 51:138 52:255 54:41 57:28 58:304 59:454 60:95 61:812 62:560 63:124 64:380 65:285 66:297 67:298 68:69 69:268 70:34 71:82 72:238 74:198 75:68 76:62 77:498 78:451 79:246 80:233 81:355 82:386 83:183 84:194 85:375 86:143 87:303 88:106 89:494 90:131 91:1400 92:443 93:935 94:788 95:1483 96:266 97:145 98:72 99:47 101:463 102:181 103:8415 104:360 105:180 106:287 107:113 108:140 109:456 110:229 111:2101 112:921 113:312 114:811 115:305 116:402 117:1391 118:400 119:281 120:1233 121:419 122:1756 123:462 124:359 125:1585 126:6 128:400 129:64 130:127 131:207 132:51 133:304 134:159 135:24 136:78 137:162 138:331 139:230 140:315 141:198 142:80 143:168 144:115 145:134 146:375 147:254 148:355 149:234 150:262 151:496 152:464 153:37 154:1002 155:194 156:481 157:284 158:129 159:394 160:664 161:147 162:266 163:309 164:148 165:222 166:44 167:183 168:347 169:81 170:488 171:197 172:217 173:926 174:118 175:569 176:726 177:548 178:665 179:215 180:447 181:158 182:1551 183:1062 184:138 185:2307 186:196 187:471 188:622 189:289 190:486 191:100 192:1829 193:1139 194:925 195:770 196:274 197:414 198:731 199:544 200:763 201:538 202:2505 203:2239 204:284 205:271 206:301 207:307 208:234 209:298 210:1473 211:1143 212:783 213:522 214:2 216:378 217:580 218:804 219:66 220:574 221:360 222:135 223:1064 End of report