IPv4 R&E Routing Table Report 20:30 GMT Thu 03 Jul, 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: 158026 Prefixes after maximum aggregation (per Origin AS): 62273 Deaggregation factor: 2.54 Unique aggregates announced (without unneeded subnets): 89017 Number of IPv4 prefixes with a valid ROA: 86830 Number of IPv4 prefixes with an invalid ROA: 69 Number of IPv4 prefixes with no ROA: 71127 Total ASes present in the Internet Routing Table: 14401 Prefixes per ASN: 10.97 Origin-only ASes present in the Internet Routing Table: 12147 Origin ASes announcing only one prefix: 5866 Transit ASes present in the Internet Routing Table: 2254 Transit-only ASes present in the Internet Routing Table: 535 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: 53 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 72 Number of instances of unregistered ASNs: 72 Number of 32-bit ASNs allocated by the RIRs: 46744 Number of 32-bit ASNs visible in the Routing Table: 7111 Prefixes from 32-bit ASNs in the Routing Table: 29418 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: 29 Number of addresses announced to Internet: 491581952 Equivalent to 29 /8s, 76 /16s and 242 /24s Percentage of available address space announced: 13.3 Percentage of allocated address space announced: 13.3 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: 40006 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76190 Total APNIC prefixes after maximum aggregation: 23485 APNIC Deaggregation factor: 3.24 Prefixes being announced from the APNIC address blocks: 74459 Unique aggregates announced from the APNIC address blocks: 34549 APNIC Region origin ASes present in the Internet Routing Table: 4689 APNIC Prefixes per ASN: 15.88 APNIC Region origin ASes announcing only one prefix: 1712 APNIC Region transit ASes present in the Internet Routing Table: 717 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: 3028 Number of APNIC addresses announced to Internet: 180764672 Equivalent to 10 /8s, 198 /16s and 64 /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: 26546 Total ARIN prefixes after maximum aggregation: 14402 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26093 Unique aggregates announced from the ARIN address blocks: 20405 ARIN Region origin ASes present in the Internet Routing Table: 2083 ARIN Prefixes per ASN: 12.53 ARIN Region origin ASes announcing only one prefix: 986 ARIN Region transit ASes present in the Internet Routing Table: 216 Average ARIN Region AS path length visible: 5.0 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: 161208064 Equivalent to 9 /8s, 155 /16s and 215 /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: 41179 Total RIPE prefixes after maximum aggregation: 19396 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 42095 Unique aggregates announced from the RIPE address blocks: 26302 RIPE Region origin ASes present in the Internet Routing Table: 4755 RIPE Prefixes per ASN: 8.85 RIPE Region origin ASes announcing only one prefix: 2207 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 50 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1692 Number of RIPE addresses announced to Internet: 126199808 Equivalent to 7 /8s, 133 /16s and 168 /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: 12475 Total LACNIC prefixes after maximum aggregation: 4504 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 12167 Unique aggregates announced from the LACNIC address blocks: 5929 LACNIC Region origin ASes present in the Internet Routing Table: 2224 LACNIC Prefixes per ASN: 5.47 LACNIC Region origin ASes announcing only one prefix: 924 LACNIC Region transit ASes present in the Internet Routing Table: 497 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1872 Number of LACNIC addresses announced to Internet: 18031104 Equivalent to 1 /8s, 19 /16s and 34 /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: 1564 Total AfriNIC prefixes after maximum aggregation: 434 AfriNIC Deaggregation factor: 3.60 Prefixes being announced from the AfriNIC address blocks: 3183 Unique aggregates announced from the AfriNIC address blocks: 1808 AfriNIC Region origin ASes present in the Internet Routing Table: 93 AfriNIC Prefixes per ASN: 34.23 AfriNIC Region origin ASes announcing only one prefix: 37 AfriNIC Region transit ASes present in the Internet Routing Table: 24 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 44 Number of AfriNIC addresses announced to Internet: 5360384 Equivalent to 0 /8s, 81 /16s and 203 /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 11378 8759 115 CHINAMOBILE-CN China Mobile Communication 9498 4283 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2897 861 525 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2373 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1947 6030 919 KIXS-AS-KR Korea Telecom, KR 45609 1861 827 326 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1615 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 9919 968 170 64 NCIC-TW New Century InfoComm Tech Co., Lt 24547 871 176 59 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 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 2451 339 616 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2306 3713 1327 AMAZON-02, US 20115 2245 3099 510 CHARTER-20115, US 11492 1955 135 1055 CABLEONE, US 714 1244 4391 8 APPLE-ENGINEERING, US 8075 777 16022 656 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 565 192 88 WOW-INTERNET, US 2152 428 48 268 CENIC-2152, US 33363 381 1424 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2984 2190 961 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 954 100 407 SELECTEL, RU 25019 889 623 332 SAUDINETSTC-AS, SA 9123 678 42 306 TIMEWEB-AS, RU 50010 614 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 471 189 173 KAZTELECOM-AS, KZ 9155 427 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 377 38 239 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 2245 699 313 UNINET, MX 8167 342 1089 44 V tal, BR 7738 297 939 71 V tal, BR 1916 240 177 41 Rede Nacional de Ensino e Pesquisa, BR 28201 219 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 123 10 26 CPS, AR 11340 109 9 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 563 80 60 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 15399 75 7 27 WANANCHI-, KE 30999 74 25 32 EMTEL-AS-AP, MU 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 37 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 328543 24 9 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 11378 8759 115 CHINAMOBILE-CN China Mobile Communication 9498 4283 502 304 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2984 2190 961 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2897 861 525 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2451 339 616 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 2373 812 180 CMNET-JIANGSU-AP China Mobile communicati 16509 2306 3713 1327 AMAZON-02, US 8151 2245 699 313 UNINET, MX 20115 2245 3099 510 CHARTER-20115, 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4283 3979 BBIL-AP BHARTI Airtel Ltd., IN 24560 2897 2372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2373 2193 CMNET-JIANGSU-AP China Mobile communications co 12389 2984 2023 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 8151 2245 1932 UNINET, MX 30036 2451 1835 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 1735 CHARTER-20115, US 56041 1615 1541 CMNET-ZHEJIANG-AP China Mobile communications c 45609 1861 1535 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 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 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 /12:46 /13:80 /14:149 /15:388 /16:2305 /17:1285 /18:2580 /19:4419 /20:7727 /21:9150 /22:16925 /23:16232 /24:96711 /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 2134 2451 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1898 2984 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1347 1955 CABLEONE, US 8151 1258 2245 UNINET, MX 49505 667 954 SELECTEL, RU 9123 552 678 TIMEWEB-AS, RU 20115 549 2245 CHARTER-20115, US 36914 541 563 KENET-AS, KE 50010 512 614 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 3:108 5:1136 8:81 12:73 13:95 14:392 15:59 16:62 17:331 18:75 20:28 23:778 24:596 25:2 27:521 31:555 32:2 34:3 35:51 36:2186 37:643 38:561 39:676 40:1 41:251 42:105 43:687 44:21 45:2410 46:785 47:60 49:194 50:326 51:136 52:252 54:62 57:28 58:275 59:457 60:103 61:777 62:574 63:128 64:362 65:179 66:320 67:291 68:71 69:257 70:48 71:76 72:243 74:214 75:66 76:62 77:499 78:459 79:257 80:228 81:352 82:408 83:187 84:207 85:469 86:129 87:328 88:103 89:476 90:136 91:1367 92:472 93:948 94:851 95:1544 96:274 97:146 98:73 99:47 101:464 102:106 103:7645 104:381 105:9 106:289 107:102 108:176 109:543 110:221 111:2129 112:1034 113:280 114:761 115:291 116:345 117:1241 118:345 119:223 120:1462 121:423 122:1734 123:388 124:316 125:1557 126:4 128:377 129:69 130:110 131:208 132:73 133:304 134:143 135:23 136:77 137:173 138:333 139:120 140:330 141:150 142:82 143:171 144:122 145:149 146:336 147:227 148:343 149:169 150:223 151:537 152:450 153:37 154:810 155:186 156:447 157:256 158:123 159:385 160:642 161:142 162:277 163:328 164:167 165:214 166:49 167:165 168:570 169:66 170:460 171:55 172:244 173:1007 174:126 175:575 176:735 177:527 178:719 179:150 180:384 181:155 182:1638 183:1180 184:141 185:2302 186:236 187:586 188:612 189:317 190:449 191:94 192:1757 193:1129 194:913 195:782 196:310 197:384 198:734 199:474 200:801 201:545 202:2431 203:1964 204:271 205:265 206:320 207:329 208:235 209:314 210:1359 211:1163 212:796 213:555 216:340 217:583 218:812 219:64 220:551 221:465 222:134 223:1330 End of report