IPv4 R&E Routing Table Report 20:30 GMT Sat 05 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: 157852 Prefixes after maximum aggregation (per Origin AS): 63875 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 90788 Number of IPv4 prefixes with a valid ROA: 85911 Number of IPv4 prefixes with an invalid ROA: 60 Number of IPv4 prefixes with no ROA: 71881 Total ASes present in the Internet Routing Table: 14717 Prefixes per ASN: 10.73 Origin-only ASes present in the Internet Routing Table: 12452 Origin ASes announcing only one prefix: 5957 Transit ASes present in the Internet Routing Table: 2265 Transit-only ASes present in the Internet Routing Table: 512 Paths with bogon ASNs present in the IPv4 Routing Table: 4 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: 82 Number of instances of unregistered ASNs: 85 Number of 32-bit ASNs allocated by the RIRs: 46163 Number of 32-bit ASNs visible in the Routing Table: 7274 Prefixes from 32-bit ASNs in the Routing Table: 29845 Number of bogon 32-bit ASNs visible in the Routing Table: 8 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 53 Number of addresses announced to Internet: 508882432 Equivalent to 30 /8s, 84 /16s and 238 /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: 38705 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77259 Total APNIC prefixes after maximum aggregation: 25553 APNIC Deaggregation factor: 3.02 Prefixes being announced from the APNIC address blocks: 75489 Unique aggregates announced from the APNIC address blocks: 37021 APNIC Region origin ASes present in the Internet Routing Table: 5056 APNIC Prefixes per ASN: 14.93 APNIC Region origin ASes announcing only one prefix: 1875 APNIC Region transit ASes present in the Internet Routing Table: 738 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3257 Number of APNIC addresses announced to Internet: 189217024 Equivalent to 11 /8s, 71 /16s and 57 /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: 27155 Total ARIN prefixes after maximum aggregation: 14849 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 26776 Unique aggregates announced from the ARIN address blocks: 20733 ARIN Region origin ASes present in the Internet Routing Table: 2158 ARIN Prefixes per ASN: 12.41 ARIN Region origin ASes announcing only one prefix: 1014 ARIN Region transit ASes present in the Internet Routing Table: 227 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: 476 Number of ARIN addresses announced to Internet: 171359744 Equivalent to 10 /8s, 54 /16s and 190 /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: 39523 Total RIPE prefixes after maximum aggregation: 18748 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40324 Unique aggregates announced from the RIPE address blocks: 25455 RIPE Region origin ASes present in the Internet Routing Table: 4680 RIPE Prefixes per ASN: 8.62 RIPE Region origin ASes announcing only one prefix: 2145 RIPE Region transit ASes present in the Internet Routing Table: 691 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: 1639 Number of RIPE addresses announced to Internet: 124590848 Equivalent to 7 /8s, 109 /16s and 27 /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: 12204 Total LACNIC prefixes after maximum aggregation: 4277 LACNIC Deaggregation factor: 2.85 Prefixes being announced from the LACNIC address blocks: 11688 Unique aggregates announced from the LACNIC address blocks: 5664 LACNIC Region origin ASes present in the Internet Routing Table: 2160 LACNIC Prefixes per ASN: 5.41 LACNIC Region origin ASes announcing only one prefix: 873 LACNIC Region transit ASes present in the Internet Routing Table: 468 Average LACNIC Region AS path length visible: 7.6 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1829 Number of LACNIC addresses announced to Internet: 18139136 Equivalent to 1 /8s, 20 /16s and 200 /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: 1629 Total AfriNIC prefixes after maximum aggregation: 389 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 3522 Unique aggregates announced from the AfriNIC address blocks: 1880 AfriNIC Region origin ASes present in the Internet Routing Table: 128 AfriNIC Prefixes per ASN: 27.52 AfriNIC Region origin ASes announcing only one prefix: 50 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.7 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 73 Number of AfriNIC addresses announced to Internet: 5543680 Equivalent to 0 /8s, 84 /16s and 151 /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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR 45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1763 689 528 VIETEL-AS-AP Viettel Group, VN 56046 1592 812 181 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1480 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 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2224 3077 514 CHARTER-20115, US 16509 2198 3547 1258 AMAZON-02, US 11492 1881 130 1028 CABLEONE, US 714 1208 4391 8 APPLE-ENGINEERING, US 8075 737 16019 622 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 440 191 84 WOW-INTERNET, US 2152 387 40 263 CENIC-2152, US 33363 384 1416 211 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 789 ROSTELECOM-AS, RU 25019 914 639 321 SAUDINETSTC-AS, SA 49505 856 92 355 SELECTEL, RU 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 599 37 263 TIMEWEB-AS, RU 9155 426 37 9 QNET Kuwait, KW 42772 373 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 209242 342 31 307 CLOUDFLARESPECTRUM Cloudflare, Inc., US 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 1891 688 247 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 218 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 547 82 3 KENET-AS, KE 2018 372 318 69 TENET-1, ZA 36873 198 83 30 VNL1-AS, NG 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 34 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 15399 23 2 15 WANANCHI-, KE 37531 19 2 15 AIRTEL-NIGER, NE 327885 16 4 2 Viettel-Tanzania, TZ 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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2309 1997 789 ROSTELECOM-AS, RU 20115 2224 3077 514 CHARTER-20115, US 16509 2198 3547 1258 AMAZON-02, US 4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR 8151 1891 688 247 UNINET, MX 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 4157 3892 BBIL-AP BHARTI Airtel Ltd., IN 24560 2847 2311 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 20115 2224 1710 CHARTER-20115, US 30036 2390 1696 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1891 1644 UNINET, MX 12389 2309 1520 ROSTELECOM-AS, RU 45609 1837 1516 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1480 1427 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 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 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 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 /13:80 /14:161 /15:397 /16:2525 /17:1340 /18:2795 /19:4435 /20:7553 /21:9192 /22:16937 /23:16360 /24:95999 /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 2074 2390 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1406 2309 ROSTELECOM-AS, RU 11492 1314 1881 CABLEONE, US 8151 1034 1891 UNINET, MX 49505 592 856 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2224 CHARTER-20115, US 36914 523 547 KENET-AS, KE 16509 487 2198 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:197 2:330 3:100 5:1072 6:4 8:61 12:82 13:87 14:383 15:58 16:63 17:312 18:72 20:28 23:719 24:497 25:2 27:594 31:527 32:2 34:3 35:38 36:1349 37:625 38:535 39:692 40:1 41:245 42:143 43:660 44:18 45:2446 46:785 47:63 49:206 50:321 51:138 52:257 54:41 57:28 58:300 59:451 60:95 61:814 62:561 63:129 64:382 65:285 66:299 67:303 68:69 69:254 70:34 71:77 72:246 74:199 75:64 76:57 77:492 78:453 79:232 80:234 81:353 82:385 83:181 84:181 85:369 86:141 87:301 88:105 89:493 90:132 91:1374 92:410 93:931 94:779 95:1453 96:264 97:145 98:71 99:47 101:465 102:122 103:8108 104:374 105:170 106:292 107:115 108:142 109:437 110:230 111:2095 112:918 113:316 114:843 115:302 116:394 117:1352 118:372 119:281 120:1227 121:416 122:1740 123:450 124:329 125:1569 126:3 128:399 129:62 130:123 131:213 132:47 133:304 134:165 135:23 136:79 137:163 138:307 139:225 140:317 141:190 142:80 143:166 144:113 145:133 146:376 147:251 148:358 149:216 150:266 151:493 152:465 153:37 154:929 155:198 156:476 157:282 158:131 159:391 160:659 161:151 162:268 163:305 164:144 165:223 166:52 167:187 168:338 169:80 170:483 171:162 172:214 173:968 174:118 175:563 176:711 177:536 178:676 179:221 180:492 181:156 182:1579 183:1056 184:140 185:2255 186:184 187:464 188:625 189:279 190:491 191:81 192:1862 193:1121 194:914 195:768 196:238 197:387 198:771 199:584 200:730 201:536 202:2468 203:2200 204:288 205:275 206:308 207:322 208:238 209:320 210:1468 211:1144 212:788 213:532 214:10 216:375 217:545 218:800 219:64 220:570 221:355 222:135 223:1053 End of report