IPv4 R&E Routing Table Report 20:30 GMT Mon 02 Jun, 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: 160286 Prefixes after maximum aggregation (per Origin AS): 63853 Deaggregation factor: 2.51 Unique aggregates announced (without unneeded subnets): 90618 Number of IPv4 prefixes with a valid ROA: 88383 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71829 Total ASes present in the Internet Routing Table: 14633 Prefixes per ASN: 10.95 Origin-only ASes present in the Internet Routing Table: 12373 Origin ASes announcing only one prefix: 5989 Transit ASes present in the Internet Routing Table: 2260 Transit-only ASes present in the Internet Routing Table: 495 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: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46555 Number of 32-bit ASNs visible in the Routing Table: 7241 Prefixes from 32-bit ASNs in the Routing Table: 30180 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: 32 Number of addresses announced to Internet: 504622080 Equivalent to 30 /8s, 19 /16s and 236 /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: 39185 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79066 Total APNIC prefixes after maximum aggregation: 25126 APNIC Deaggregation factor: 3.15 Prefixes being announced from the APNIC address blocks: 77291 Unique aggregates announced from the APNIC address blocks: 36651 APNIC Region origin ASes present in the Internet Routing Table: 4992 APNIC Prefixes per ASN: 15.48 APNIC Region origin ASes announcing only one prefix: 1851 APNIC Region transit ASes present in the Internet Routing Table: 752 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: 3201 Number of APNIC addresses announced to Internet: 188477184 Equivalent to 11 /8s, 59 /16s and 239 /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: 27282 Total ARIN prefixes after maximum aggregation: 14865 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26881 Unique aggregates announced from the ARIN address blocks: 20871 ARIN Region origin ASes present in the Internet Routing Table: 2149 ARIN Prefixes per ASN: 12.51 ARIN Region origin ASes announcing only one prefix: 1009 ARIN Region transit ASes present in the Internet Routing Table: 219 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: 477 Number of ARIN addresses announced to Internet: 166895616 Equivalent to 9 /8s, 242 /16s and 160 /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: 40217 Total RIPE prefixes after maximum aggregation: 19085 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 41038 Unique aggregates announced from the RIPE address blocks: 25901 RIPE Region origin ASes present in the Internet Routing Table: 4668 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 2163 RIPE Region transit ASes present in the Internet Routing Table: 674 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: 1665 Number of RIPE addresses announced to Internet: 125385984 Equivalent to 7 /8s, 121 /16s and 61 /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: 12145 Total LACNIC prefixes after maximum aggregation: 4348 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 11640 Unique aggregates announced from the LACNIC address blocks: 5502 LACNIC Region origin ASes present in the Internet Routing Table: 2207 LACNIC Prefixes per ASN: 5.27 LACNIC Region origin ASes announcing only one prefix: 925 LACNIC Region transit ASes present in the Internet Routing Table: 482 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: 1847 Number of LACNIC addresses announced to Internet: 17963008 Equivalent to 1 /8s, 18 /16s and 24 /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: 1507 Total AfriNIC prefixes after maximum aggregation: 380 AfriNIC Deaggregation factor: 3.97 Prefixes being announced from the AfriNIC address blocks: 3404 Unique aggregates announced from the AfriNIC address blocks: 1666 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 33.05 AfriNIC Region origin ASes announcing only one prefix: 41 AfriNIC Region transit ASes present in the Internet Routing Table: 32 Average AfriNIC Region AS path length visible: 8.1 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: 5879040 Equivalent to 0 /8s, 89 /16s and 181 /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 4241 500 295 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 1982 6032 921 KIXS-AS-KR Korea Telecom, KR 56046 1931 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1853 826 324 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 2419 335 654 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 3096 513 CHARTER-20115, US 16509 2244 3646 1288 AMAZON-02, US 11492 1934 134 1045 CABLEONE, US 714 1240 4391 8 APPLE-ENGINEERING, US 8075 761 16021 643 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 887 623 322 SAUDINETSTC-AS, SA 49505 860 92 356 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 428 37 8 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 2087 692 280 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 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 262287 88 13 74 Latitude.sh LTDA, 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 469 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 55 37 31 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37473 46 4 2 TELESOM, SO 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 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 4241 500 295 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2419 335 654 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2312 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 20115 2245 3096 513 CHARTER-20115, US 16509 2244 3646 1288 AMAZON-02, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2087 692 280 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 4241 3946 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2087 1807 UNINET, MX 30036 2419 1765 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 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 /12:47 /13:82 /14:162 /15:395 /16:2466 /17:1299 /18:2749 /19:4435 /20:7637 /21:9614 /22:17360 /23:16680 /24:97330 /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 4180 ALJAWWALSTC-AS, SA 30036 2102 2419 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2312 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1934 CABLEONE, US 8151 1141 2087 UNINET, MX 49505 597 860 SELECTEL, RU 20115 552 2245 CHARTER-20115, US 9123 521 641 TIMEWEB-AS, RU 50010 515 617 NAWRAS-AS Sultanate of Oman, OM 16509 493 2244 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:160 2:322 3:105 5:1114 8:79 12:79 13:88 14:398 15:59 16:63 17:326 18:74 20:28 23:724 24:597 25:2 27:606 31:561 32:2 34:3 35:38 36:1933 37:639 38:544 39:696 40:1 41:181 42:115 43:675 44:21 45:2347 46:778 47:63 49:209 50:325 51:138 52:259 54:62 57:28 58:264 59:461 60:95 61:787 62:565 63:129 64:363 65:282 66:317 67:293 68:78 69:264 70:47 71:83 72:245 74:216 75:68 76:62 77:496 78:456 79:247 80:225 81:344 82:379 83:190 84:196 85:385 86:132 87:318 88:103 89:480 90:135 91:1395 92:460 93:958 94:780 95:1483 96:268 97:146 98:71 99:47 101:487 102:108 103:7939 104:377 105:9 106:292 107:111 108:175 109:453 110:225 111:2113 112:980 113:300 114:836 115:379 116:431 117:1380 118:350 119:241 120:1335 121:424 122:1728 123:392 124:328 125:1595 126:6 128:378 129:63 130:127 131:205 132:51 133:302 134:163 135:22 136:78 137:168 138:318 139:219 140:325 141:195 142:83 143:164 144:132 145:145 146:372 147:223 148:196 149:193 150:221 151:533 152:457 153:38 154:942 155:209 156:478 157:288 158:131 159:402 160:639 161:148 162:283 163:325 164:141 165:230 166:42 167:198 168:592 169:74 170:482 171:194 172:235 173:985 174:123 175:561 176:722 177:476 178:689 179:179 180:459 181:157 182:1637 183:1136 184:137 185:2299 186:210 187:536 188:601 189:309 190:448 191:97 192:1885 193:1123 194:924 195:785 196:312 197:374 198:775 199:556 200:791 201:537 202:2425 203:2163 204:289 205:268 206:313 207:322 208:245 209:316 210:1480 211:1151 212:766 213:529 216:359 217:540 218:811 219:60 220:564 221:410 222:132 223:1211 End of report