IPv4 R&E Routing Table Report 20:30 GMT Mon 12 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: 157234 Prefixes after maximum aggregation (per Origin AS): 62089 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 88631 Number of IPv4 prefixes with a valid ROA: 86681 Number of IPv4 prefixes with an invalid ROA: 82 Number of IPv4 prefixes with no ROA: 70471 Total ASes present in the Internet Routing Table: 14433 Prefixes per ASN: 10.89 Origin-only ASes present in the Internet Routing Table: 12205 Origin ASes announcing only one prefix: 5958 Transit ASes present in the Internet Routing Table: 2228 Transit-only ASes present in the Internet Routing Table: 497 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: 7151 Prefixes from 32-bit ASNs in the Routing Table: 28944 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: 504176640 Equivalent to 30 /8s, 13 /16s and 32 /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: 38376 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77947 Total APNIC prefixes after maximum aggregation: 24822 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 76206 Unique aggregates announced from the APNIC address blocks: 36508 APNIC Region origin ASes present in the Internet Routing Table: 4944 APNIC Prefixes per ASN: 15.41 APNIC Region origin ASes announcing only one prefix: 1860 APNIC Region transit ASes present in the Internet Routing Table: 723 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: 3173 Number of APNIC addresses announced to Internet: 188475136 Equivalent to 11 /8s, 59 /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: 26267 Total ARIN prefixes after maximum aggregation: 14185 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 25794 Unique aggregates announced from the ARIN address blocks: 19748 ARIN Region origin ASes present in the Internet Routing Table: 2050 ARIN Prefixes per ASN: 12.58 ARIN Region origin ASes announcing only one prefix: 984 ARIN Region transit ASes present in the Internet Routing Table: 216 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: 448 Number of ARIN addresses announced to Internet: 166916096 Equivalent to 9 /8s, 242 /16s and 240 /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: 39308 Total RIPE prefixes after maximum aggregation: 18304 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40189 Unique aggregates announced from the RIPE address blocks: 25045 RIPE Region origin ASes present in the Internet Routing Table: 4605 RIPE Prefixes per ASN: 8.73 RIPE Region origin ASes announcing only one prefix: 2138 RIPE Region transit ASes present in the Internet Routing Table: 665 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: 1621 Number of RIPE addresses announced to Internet: 124632576 Equivalent to 7 /8s, 109 /16s and 190 /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: 12107 Total LACNIC prefixes after maximum aggregation: 4355 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11547 Unique aggregates announced from the LACNIC address blocks: 5665 LACNIC Region origin ASes present in the Internet Routing Table: 2215 LACNIC Prefixes per ASN: 5.21 LACNIC Region origin ASes announcing only one prefix: 937 LACNIC Region transit ASes present in the Internet Routing Table: 483 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1856 Number of LACNIC addresses announced to Internet: 18225920 Equivalent to 1 /8s, 22 /16s and 27 /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: 1524 Total AfriNIC prefixes after maximum aggregation: 362 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 3436 Unique aggregates announced from the AfriNIC address blocks: 1635 AfriNIC Region origin ASes present in the Internet Routing Table: 98 AfriNIC Prefixes per ASN: 35.06 AfriNIC Region origin ASes announcing only one prefix: 39 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: 53 Number of AfriNIC addresses announced to Internet: 5896960 Equivalent to 0 /8s, 89 /16s and 251 /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 10622 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4213 500 291 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 4766 2017 6034 953 KIXS-AS-KR Korea Telecom, KR 45609 1853 828 322 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1708 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1575 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 9919 968 170 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 2406 333 680 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2236 3628 1280 AMAZON-02, US 20115 2236 3097 514 CHARTER-20115, US 11492 1926 134 1046 CABLEONE, US 714 1235 4391 8 APPLE-ENGINEERING, US 8075 752 16020 635 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 577 192 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 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 921 639 330 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 628 39 281 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 457 176 169 KAZTELECOM-AS, KZ 9155 426 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 1815 668 234 UNINET, MX 7738 577 1719 61 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 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 127 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 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 6879 24 2 9 ENSTINET-, EG 10798 21 1 17 SBICSA, ZA 327885 20 4 3 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 10622 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4213 500 291 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2406 333 680 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1997 779 ROSTELECOM-AS PJSC Rostelecom. Technical 7552 2244 1083 461 VIETEL-AS-AP Viettel Group, VN 16509 2236 3628 1280 AMAZON-02, US 20115 2236 3097 514 CHARTER-20115, US 4766 2017 6034 953 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 4213 3922 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 7552 2244 1783 VIETEL-AS-AP Viettel Group, VN 30036 2406 1726 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2236 1722 CHARTER-20115, US 8151 1815 1581 UNINET, MX 45609 1853 1531 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56046 1708 1528 CMNET-JIANGSU-AP China Mobile communications co 12389 2305 1526 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 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 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 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 /12:47 /13:82 /14:167 /15:396 /16:2475 /17:1327 /18:2794 /19:4411 /20:7568 /21:9492 /22:17186 /23:16346 /24:94913 /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 2090 2406 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1401 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1926 CABLEONE, US 8151 1008 1815 UNINET, MX 49505 596 860 SELECTEL, RU 20115 552 2236 CHARTER-20115, US 36914 527 551 KENET-AS, KE 50010 514 616 NAWRAS-AS Sultanate of Oman, OM 9123 510 628 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:321 3:103 5:1092 8:66 12:81 13:89 14:381 15:58 16:63 17:321 18:74 20:28 23:714 24:594 25:2 27:622 31:530 32:2 34:3 35:37 36:1679 37:633 38:502 39:702 40:1 41:243 42:135 43:658 44:24 45:2319 46:784 47:63 49:206 50:319 51:138 52:258 54:62 57:28 58:300 59:451 60:95 61:767 62:546 63:114 64:371 65:282 66:266 67:309 68:65 69:248 70:32 71:84 72:247 74:188 75:66 76:62 77:510 78:450 79:239 80:224 81:340 82:347 83:188 84:186 85:370 86:113 87:306 88:101 89:461 90:133 91:1387 92:440 93:929 94:779 95:1465 96:266 97:146 98:68 99:47 101:448 102:119 103:7843 104:354 105:9 106:288 107:106 108:144 109:466 110:230 111:2133 112:932 113:299 114:827 115:309 116:411 117:1395 118:364 119:252 120:1257 121:416 122:1706 123:389 124:328 125:1583 126:6 128:382 129:66 130:124 131:201 132:52 133:303 134:160 135:20 136:79 137:167 138:313 139:223 140:316 141:175 142:76 143:155 144:119 145:136 146:375 147:255 148:351 149:191 150:227 151:517 152:454 153:37 154:909 155:189 156:539 157:275 158:125 159:355 160:622 161:125 162:223 163:302 164:141 165:217 166:44 167:180 168:335 169:68 170:469 171:188 172:211 173:967 174:115 175:551 176:722 177:483 178:675 179:178 180:480 181:135 182:1608 183:1086 184:134 185:2197 186:216 187:471 188:593 189:298 190:472 191:79 192:1790 193:1117 194:891 195:753 196:289 197:371 198:684 199:489 200:766 201:500 202:2452 203:2209 204:274 205:224 206:281 207:313 208:234 209:262 210:1463 211:1147 212:761 213:547 214:2 216:364 217:526 218:802 219:62 220:567 221:390 222:134 223:1098 End of report