IPv4 R&E Routing Table Report 20:30 GMT Sat 31 May, 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: 159092 Prefixes after maximum aggregation (per Origin AS): 62717 Deaggregation factor: 2.54 Unique aggregates announced (without unneeded subnets): 89333 Number of IPv4 prefixes with a valid ROA: 87927 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71091 Total ASes present in the Internet Routing Table: 14500 Prefixes per ASN: 10.97 Origin-only ASes present in the Internet Routing Table: 12235 Origin ASes announcing only one prefix: 5934 Transit ASes present in the Internet Routing Table: 2265 Transit-only ASes present in the Internet Routing Table: 506 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 71 Number of instances of unregistered ASNs: 71 Number of 32-bit ASNs allocated by the RIRs: 46546 Number of 32-bit ASNs visible in the Routing Table: 7205 Prefixes from 32-bit ASNs in the Routing Table: 29602 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 35 Number of addresses announced to Internet: 496993536 Equivalent to 29 /8s, 159 /16s and 133 /24s Percentage of available address space announced: 13.4 Percentage of allocated address space announced: 13.4 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: 39158 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78141 Total APNIC prefixes after maximum aggregation: 24512 APNIC Deaggregation factor: 3.19 Prefixes being announced from the APNIC address blocks: 76431 Unique aggregates announced from the APNIC address blocks: 35959 APNIC Region origin ASes present in the Internet Routing Table: 4887 APNIC Prefixes per ASN: 15.64 APNIC Region origin ASes announcing only one prefix: 1801 APNIC Region transit ASes present in the Internet Routing Table: 742 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: 3179 Number of APNIC addresses announced to Internet: 184005632 Equivalent to 10 /8s, 247 /16s and 180 /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: 27209 Total ARIN prefixes after maximum aggregation: 14731 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26720 Unique aggregates announced from the ARIN address blocks: 20639 ARIN Region origin ASes present in the Internet Routing Table: 2122 ARIN Prefixes per ASN: 12.59 ARIN Region origin ASes announcing only one prefix: 1007 ARIN Region transit ASes present in the Internet Routing Table: 227 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 479 Number of ARIN addresses announced to Internet: 163442432 Equivalent to 9 /8s, 189 /16s and 239 /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: 39806 Total RIPE prefixes after maximum aggregation: 18641 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40665 Unique aggregates announced from the RIPE address blocks: 25462 RIPE Region origin ASes present in the Internet Routing Table: 4624 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 2146 RIPE Region transit ASes present in the Internet Routing Table: 668 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: 1624 Number of RIPE addresses announced to Internet: 125669376 Equivalent to 7 /8s, 125 /16s and 144 /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: 12314 Total LACNIC prefixes after maximum aggregation: 4400 LACNIC Deaggregation factor: 2.80 Prefixes being announced from the LACNIC address blocks: 11817 Unique aggregates announced from the LACNIC address blocks: 5593 LACNIC Region origin ASes present in the Internet Routing Table: 2234 LACNIC Prefixes per ASN: 5.29 LACNIC Region origin ASes announcing only one prefix: 936 LACNIC Region transit ASes present in the Internet Routing Table: 485 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1870 Number of LACNIC addresses announced to Internet: 18050816 Equivalent to 1 /8s, 19 /16s and 111 /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: 1551 Total AfriNIC prefixes after maximum aggregation: 382 AfriNIC Deaggregation factor: 4.06 Prefixes being announced from the AfriNIC address blocks: 3424 Unique aggregates announced from the AfriNIC address blocks: 1650 AfriNIC Region origin ASes present in the Internet Routing Table: 106 AfriNIC Prefixes per ASN: 32.30 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 35 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 53 Number of AfriNIC addresses announced to Internet: 5803264 Equivalent to 0 /8s, 88 /16s and 141 /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 10883 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4233 500 293 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 4766 1981 6032 922 KIXS-AS-KR Korea Telecom, KR 56046 1931 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1852 825 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1638 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 9919 971 170 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 2425 336 651 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2251 3646 1293 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 11492 1934 134 1045 CABLEONE, US 714 1240 4391 8 APPLE-ENGINEERING, US 8075 759 16021 641 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 404 46 270 CENIC-2152, US 33363 388 1424 215 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 889 623 324 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 641 40 288 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 429 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY 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 2064 690 278 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 126 10 26 CPS, AR 11340 109 9 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262773 89 16 34 PROXXIMA TELECOMUNICACOES SA, 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 552 82 3 KENET-AS, KE 2018 372 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 328543 20 5 5 sun-asn, SC 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 10883 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4233 500 293 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2425 336 651 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2251 3646 1293 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2064 690 278 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4233 3940 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2064 1786 UNINET, MX 30036 2425 1774 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 1931 1751 CMNET-JIANGSU-AP China Mobile communications co 20115 2245 1732 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 56041 1638 1552 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2312 1530 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 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 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 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 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 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 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 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 /12:47 /13:82 /14:160 /15:393 /16:2371 /17:1287 /18:2736 /19:4416 /20:7695 /21:9589 /22:17407 /23:16659 /24:96221 /25:0 /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 4180 ALJAWWALSTC-AS, SA 30036 2108 2425 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2312 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1934 CABLEONE, US 8151 1132 2064 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2245 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 521 641 TIMEWEB-AS, RU 50010 515 617 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:161 2:321 3:105 5:1096 8:79 12:79 13:93 14:395 15:59 16:63 17:326 18:74 20:28 23:720 24:597 25:2 27:611 31:531 32:2 34:3 35:37 36:1928 37:631 38:533 39:697 40:1 41:249 42:114 43:675 44:21 45:2274 46:768 47:63 49:209 50:326 51:138 52:259 54:62 57:28 58:263 59:458 60:95 61:783 62:555 63:129 64:360 65:283 66:314 67:303 68:81 69:276 70:47 71:83 72:249 74:226 75:65 76:63 77:486 78:459 79:239 80:225 81:331 82:350 83:187 84:186 85:378 86:118 87:315 88:97 89:474 90:135 91:1393 92:447 93:946 94:778 95:1474 96:267 97:146 98:68 99:47 101:487 102:109 103:7930 104:373 105:9 106:293 107:109 108:180 109:452 110:224 111:2113 112:982 113:300 114:819 115:381 116:436 117:1318 118:354 119:217 120:1336 121:428 122:1727 123:386 124:329 125:1590 126:6 128:378 129:64 130:121 131:188 132:49 133:302 134:135 135:22 136:78 137:167 138:321 139:218 140:319 141:188 142:82 143:159 144:131 145:142 146:370 147:217 148:197 149:180 150:219 151:529 152:451 153:45 154:917 155:197 156:464 157:299 158:127 159:396 160:639 161:148 162:285 163:318 164:145 165:230 166:40 167:197 168:591 169:70 170:486 171:193 172:234 173:997 174:129 175:559 176:719 177:491 178:687 179:182 180:457 181:134 182:1635 183:1136 184:139 185:2235 186:217 187:527 188:600 189:309 190:471 191:95 192:1761 193:1110 194:914 195:778 196:307 197:373 198:737 199:501 200:775 201:550 202:2395 203:1978 204:272 205:273 206:313 207:339 208:252 209:329 210:1382 211:1149 212:756 213:510 216:351 217:542 218:809 219:60 220:560 221:410 222:132 223:1211 End of report