IPv4 R&E Routing Table Report 20:30 GMT Thu 15 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: 157702 Prefixes after maximum aggregation (per Origin AS): 62736 Deaggregation factor: 2.51 Unique aggregates announced (without unneeded subnets): 88880 Number of IPv4 prefixes with a valid ROA: 86468 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71160 Total ASes present in the Internet Routing Table: 14650 Prefixes per ASN: 10.76 Origin-only ASes present in the Internet Routing Table: 12392 Origin ASes announcing only one prefix: 6000 Transit ASes present in the Internet Routing Table: 2258 Transit-only ASes present in the Internet Routing Table: 526 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: 81 Number of instances of unregistered ASNs: 81 Number of 32-bit ASNs allocated by the RIRs: 46405 Number of 32-bit ASNs visible in the Routing Table: 7229 Prefixes from 32-bit ASNs in the Routing Table: 29111 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: 62 Number of addresses announced to Internet: 504609280 Equivalent to 30 /8s, 19 /16s and 186 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 38260 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78171 Total APNIC prefixes after maximum aggregation: 25102 APNIC Deaggregation factor: 3.11 Prefixes being announced from the APNIC address blocks: 76564 Unique aggregates announced from the APNIC address blocks: 36394 APNIC Region origin ASes present in the Internet Routing Table: 5036 APNIC Prefixes per ASN: 15.20 APNIC Region origin ASes announcing only one prefix: 1894 APNIC Region transit ASes present in the Internet Routing Table: 748 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3233 Number of APNIC addresses announced to Internet: 188887040 Equivalent to 11 /8s, 66 /16s and 48 /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: 26922 Total ARIN prefixes after maximum aggregation: 14649 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26479 Unique aggregates announced from the ARIN address blocks: 20446 ARIN Region origin ASes present in the Internet Routing Table: 2137 ARIN Prefixes per ASN: 12.39 ARIN Region origin ASes announcing only one prefix: 1006 ARIN Region transit ASes present in the Internet Routing Table: 224 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: 475 Number of ARIN addresses announced to Internet: 167518976 Equivalent to 9 /8s, 252 /16s and 35 /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: 39241 Total RIPE prefixes after maximum aggregation: 18218 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40150 Unique aggregates announced from the RIPE address blocks: 24950 RIPE Region origin ASes present in the Internet Routing Table: 4601 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2127 RIPE Region transit ASes present in the Internet Routing Table: 659 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: 1602 Number of RIPE addresses announced to Internet: 124649216 Equivalent to 7 /8s, 109 /16s and 255 /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: 11750 Total LACNIC prefixes after maximum aggregation: 4332 LACNIC Deaggregation factor: 2.71 Prefixes being announced from the LACNIC address blocks: 11180 Unique aggregates announced from the LACNIC address blocks: 5497 LACNIC Region origin ASes present in the Internet Routing Table: 2225 LACNIC Prefixes per ASN: 5.02 LACNIC Region origin ASes announcing only one prefix: 933 LACNIC Region transit ASes present in the Internet Routing Table: 489 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1868 Number of LACNIC addresses announced to Internet: 17618176 Equivalent to 1 /8s, 12 /16s and 213 /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: 1537 Total AfriNIC prefixes after maximum aggregation: 374 AfriNIC Deaggregation factor: 4.11 Prefixes being announced from the AfriNIC address blocks: 3267 Unique aggregates announced from the AfriNIC address blocks: 1563 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Prefixes per ASN: 32.35 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5905920 Equivalent to 0 /8s, 90 /16s and 30 /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 10811 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4217 500 292 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2118 1075 452 VIETEL-AS-AP Viettel Group, VN 4766 1871 5889 954 KIXS-AS-KR Korea Telecom, KR 45609 1853 828 322 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1779 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1577 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 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 2413 335 673 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3096 513 CHARTER-20115, US 16509 2234 3628 1278 AMAZON-02, US 11492 1927 134 1046 CABLEONE, US 714 1242 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 580 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1422 213 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 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 918 639 330 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 632 40 282 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 483 188 175 KAZTELECOM-AS, KZ 9155 427 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 1513 535 225 UNINET, MX 7738 577 1719 61 V tal, BR 8167 342 1089 44 V tal, BR 1916 242 177 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 127 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262773 89 16 38 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 373 318 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 10811 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4217 500 292 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2413 335 673 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2309 1999 781 ROSTELECOM-AS PJSC Rostelecom. Technical 20115 2235 3096 513 CHARTER-20115, US 16509 2234 3628 1278 AMAZON-02, US 7552 2118 1075 452 VIETEL-AS-AP Viettel Group, VN 11492 1927 134 1046 CABLEONE, US 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 4217 3925 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2413 1740 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1722 CHARTER-20115, US 7552 2118 1666 VIETEL-AS-AP Viettel Group, VN 56046 1779 1599 CMNET-JIANGSU-AP China Mobile communications co 45609 1853 1531 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2309 1528 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1577 1503 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 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 /13:80 /14:167 /15:397 /16:2483 /17:1339 /18:2801 /19:4373 /20:7548 /21:9336 /22:17240 /23:16326 /24:95535 /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 2097 2413 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1403 2309 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1927 CABLEONE, US 8151 829 1513 UNINET, MX 49505 596 860 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 514 632 TIMEWEB-AS, RU 50010 514 616 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) ---------------------------------------------- 1:160 2:325 3:104 5:1091 8:72 12:81 13:89 14:373 15:58 16:63 17:322 18:74 20:28 23:715 24:593 25:2 27:606 31:526 32:2 34:3 35:37 36:1812 37:643 38:501 39:703 40:1 41:244 42:115 43:672 44:25 45:2345 46:785 47:64 49:253 50:320 51:138 52:259 54:62 57:28 58:267 59:432 60:95 61:775 62:550 63:129 64:352 65:283 66:300 67:292 68:72 69:264 70:32 71:84 72:226 74:196 75:65 76:62 77:483 78:450 79:231 80:222 81:342 82:344 83:179 84:184 85:366 86:113 87:308 88:100 89:458 90:134 91:1386 92:449 93:928 94:788 95:1455 96:266 97:146 98:68 99:47 101:459 102:118 103:7993 104:363 105:9 106:290 107:112 108:146 109:467 110:230 111:2154 112:935 113:297 114:809 115:292 116:412 117:1376 118:323 119:244 120:1288 121:394 122:1712 123:391 124:328 125:1579 126:6 128:375 129:67 130:125 131:213 132:52 133:303 134:163 135:24 136:79 137:167 138:320 139:226 140:317 141:186 142:76 143:156 144:124 145:136 146:371 147:230 148:199 149:196 150:227 151:510 152:453 153:37 154:864 155:189 156:440 157:292 158:126 159:395 160:673 161:131 162:272 163:299 164:141 165:217 166:44 167:185 168:583 169:69 170:463 171:192 172:212 173:974 174:119 175:551 176:723 177:474 178:678 179:176 180:474 181:138 182:1616 183:1120 184:138 185:2220 186:222 187:468 188:589 189:250 190:466 191:96 192:1852 193:1131 194:906 195:764 196:304 197:372 198:766 199:562 200:786 201:446 202:2494 203:2168 204:284 205:264 206:302 207:319 208:241 209:308 210:1430 211:1114 212:742 213:517 214:2 216:342 217:555 218:796 219:63 220:538 221:391 222:128 223:1093 End of report