IPv4 R&E Routing Table Report 20:15 GMT Wed 10 Sep, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 278435 Prefixes after maximum aggregation (per Origin AS): 118602 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 142003 Number of IPv4 prefixes with a valid ROA: 131549 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 146846 Total ASes present in the Internet Routing Table: 20398 Prefixes per ASN: 13.65 Origin-only ASes present in the Internet Routing Table: 17579 Origin ASes announcing only one prefix: 7827 Transit ASes present in the Internet Routing Table: 2819 Transit-only ASes present in the Internet Routing Table: 700 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 356 Number of instances of unregistered ASNs: 385 Number of 32-bit ASNs allocated by the RIRs: 47345 Number of 32-bit ASNs visible in the Routing Table: 8108 Prefixes from 32-bit ASNs in the Routing Table: 33468 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 90 Number of addresses announced to Internet: 1619336709 Equivalent to 96 /8s, 133 /16s and 30 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 89096 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35854 Total APNIC prefixes after maximum aggregation: 7275 APNIC Deaggregation factor: 4.93 Prefixes being announced from the APNIC address blocks: 34688 Unique aggregates announced from the APNIC address blocks: 7131 APNIC Region origin ASes present in the Internet Routing Table: 1166 APNIC Prefixes per ASN: 29.75 APNIC Region origin ASes announcing only one prefix: 456 APNIC Region transit ASes present in the Internet Routing Table: 195 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 539 Number of APNIC addresses announced to Internet: 162531180 Equivalent to 9 /8s, 176 /16s and 7 /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: 126148 Total ARIN prefixes after maximum aggregation: 66060 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123660 Unique aggregates announced from the ARIN address blocks: 67795 ARIN Region origin ASes present in the Internet Routing Table: 9187 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3822 ARIN Region transit ASes present in the Internet Routing Table: 859 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2165 Number of ARIN addresses announced to Internet: 1019086089 Equivalent to 60 /8s, 190 /16s and 5 /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: 48633 Total RIPE prefixes after maximum aggregation: 26052 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 50935 Unique aggregates announced from the RIPE address blocks: 37257 RIPE Region origin ASes present in the Internet Routing Table: 4482 RIPE Prefixes per ASN: 11.36 RIPE Region origin ASes announcing only one prefix: 1884 RIPE Region transit ASes present in the Internet Routing Table: 673 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1853 Number of RIPE addresses announced to Internet: 282551376 Equivalent to 16 /8s, 215 /16s and 100 /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: 56769 Total LACNIC prefixes after maximum aggregation: 16558 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54875 Unique aggregates announced from the LACNIC address blocks: 24852 LACNIC Region origin ASes present in the Internet Routing Table: 4421 LACNIC Prefixes per ASN: 12.41 LACNIC Region origin ASes announcing only one prefix: 1556 LACNIC Region transit ASes present in the Internet Routing Table: 880 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3390 Number of LACNIC addresses announced to Internet: 108419136 Equivalent to 6 /8s, 118 /16s and 88 /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: 10675 Total AfriNIC prefixes after maximum aggregation: 2390 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 14187 Unique aggregates announced from the AfriNIC address blocks: 4879 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 47.13 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 72 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 46639360 Equivalent to 2 /8s, 199 /16s and 169 /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 13016 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2930 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24444 867 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 24445 558 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 550 897 139 ALIBABA-CN-NET Alibaba US Technology Co., Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14356 40863 5375 AMAZON-02, US 22773 3953 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2994 233 1753 USDA-1, US 36352 2512 206 1169 AS-COLOCROSSING, US 367 2284 2599 1115 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1218 95 990 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 34984 852 127 620 TELLCOM-AS, TR 25019 808 1301 130 SAUDINETSTC-AS, SA 8452 775 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 8376 592 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7287 1964 784 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1680 240 1218 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1176 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 803 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 22884 691 43 420 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1324 572 23 RAYA-AS, EG 24863 997 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 639 521 41 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 576 82 3 KENET-AS, KE 29571 522 98 71 ORANGE-COTE-IVOIRE, CI 36992 476 1085 219 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14356 40863 5375 AMAZON-02, US 9808 13016 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7287 1964 784 UNINET, MX 22773 3953 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2994 233 1753 USDA-1, US 56046 2930 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1169 AS-COLOCROSSING, US 367 2284 2599 1115 DNIC-ASBLK-00306-00371, US 11830 1988 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13016 12902 CHINAMOBILE-CN China Mobile Communications Grou 8151 7287 6503 UNINET, MX 22773 3953 3639 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2930 2740 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 OPEN-WIRELESS-01, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 23.181.240.0/24 Origin: 11367 ICENET, PR 23.181.240.0/24 Transit: 12956 TELXIUS TELXIUS Cable, ES Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:30 /11:51 /12:159 /13:214 /14:588 /15:1109 /16:7550 /17:3441 /18:4092 /19:7604 /20:13087 /21:15769 /22:28279 /23:29167 /24:167026 /25:66 /26:83 /27:51 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3942 7287 UNINET, MX 22773 2503 3953 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2428 14356 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1022 1374 BRIGHTSPEED, US 36352 997 2512 AS-COLOCROSSING, US 10620 990 1680 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:463 3:931 4:5 5:767 6:145 7:5 8:643 9:3 11:171 12:890 13:506 14:122 15:340 16:264 17:3 18:896 20:192 21:4 22:188 23:2552 24:685 27:32 29:19 31:488 32:12 34:10 35:180 36:3098 37:791 38:2419 39:650 40:93 41:1003 42:21 43:206 44:29 45:4378 46:988 47:118 49:21 50:474 51:383 52:1436 54:362 55:1051 56:11 57:22 58:17 59:33 60:31 61:54 62:556 63:768 64:1965 65:1102 66:1583 67:1056 68:360 69:1196 70:444 71:182 72:696 74:956 75:323 76:248 77:432 78:319 79:233 80:299 81:366 82:727 83:277 84:331 85:576 86:249 87:226 88:307 89:696 90:114 91:955 92:695 93:439 94:955 95:646 96:255 97:53 98:502 99:240 100:28 101:22 102:395 103:1082 104:1678 105:187 106:40 107:1546 108:528 109:377 110:53 111:2310 112:911 113:30 114:49 115:16 116:52 117:1286 118:70 119:70 120:1528 121:33 122:60 123:132 124:75 125:23 126:1 128:543 129:397 130:637 131:1057 132:567 133:221 134:488 135:121 136:684 137:495 138:1014 139:437 140:692 141:360 142:979 143:856 144:399 145:163 146:668 147:503 148:1002 149:652 150:201 151:784 152:503 153:180 154:1130 155:946 156:1261 157:437 158:591 159:723 160:628 161:680 162:1014 163:442 164:754 165:631 166:808 167:701 168:1505 169:161 170:1867 171:101 172:1298 173:815 174:361 175:92 176:544 177:979 178:626 179:898 180:40 181:2356 182:29 183:1314 184:450 185:3293 186:3169 187:1771 188:822 189:1915 190:6344 191:571 192:5129 193:1805 194:1145 195:955 196:763 197:1157 198:2713 199:5176 200:4486 201:3699 202:981 203:705 204:2157 205:1813 206:1583 207:1549 208:1560 209:1970 210:344 211:488 212:914 213:752 214:956 215:40 216:2488 217:483 218:604 219:18 220:32 221:454 222:24 223:1275 End of report