IPv4 R&E Routing Table Report 20:15 GMT Fri 05 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: 277008 Prefixes after maximum aggregation (per Origin AS): 118277 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 140828 Number of IPv4 prefixes with a valid ROA: 130646 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 146320 Total ASes present in the Internet Routing Table: 20370 Prefixes per ASN: 13.60 Origin-only ASes present in the Internet Routing Table: 17561 Origin ASes announcing only one prefix: 7828 Transit ASes present in the Internet Routing Table: 2809 Transit-only ASes present in the Internet Routing Table: 686 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: 336 Number of instances of unregistered ASNs: 365 Number of 32-bit ASNs allocated by the RIRs: 47329 Number of 32-bit ASNs visible in the Routing Table: 8093 Prefixes from 32-bit ASNs in the Routing Table: 33565 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: 1617220101 Equivalent to 96 /8s, 100 /16s and 210 /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: 88088 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35653 Total APNIC prefixes after maximum aggregation: 7409 APNIC Deaggregation factor: 4.81 Prefixes being announced from the APNIC address blocks: 34496 Unique aggregates announced from the APNIC address blocks: 7379 APNIC Region origin ASes present in the Internet Routing Table: 1192 APNIC Prefixes per ASN: 28.94 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 192 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: 556 Number of APNIC addresses announced to Internet: 162595436 Equivalent to 9 /8s, 177 /16s and 2 /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: 125844 Total ARIN prefixes after maximum aggregation: 66035 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124165 Unique aggregates announced from the ARIN address blocks: 67624 ARIN Region origin ASes present in the Internet Routing Table: 9192 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3820 ARIN Region transit ASes present in the Internet Routing Table: 857 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: 2161 Number of ARIN addresses announced to Internet: 1022825481 Equivalent to 60 /8s, 247 /16s and 20 /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: 48292 Total RIPE prefixes after maximum aggregation: 25750 RIPE Deaggregation factor: 1.88 Prefixes being announced from the RIPE address blocks: 50513 Unique aggregates announced from the RIPE address blocks: 36751 RIPE Region origin ASes present in the Internet Routing Table: 4448 RIPE Prefixes per ASN: 11.36 RIPE Region origin ASes announcing only one prefix: 1870 RIPE Region transit ASes present in the Internet Routing Table: 672 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1824 Number of RIPE addresses announced to Internet: 277381456 Equivalent to 16 /8s, 136 /16s and 129 /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: 55902 Total LACNIC prefixes after maximum aggregation: 16493 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 54049 Unique aggregates announced from the LACNIC address blocks: 24741 LACNIC Region origin ASes present in the Internet Routing Table: 4426 LACNIC Prefixes per ASN: 12.21 LACNIC Region origin ASes announcing only one prefix: 1559 LACNIC Region transit ASes present in the Internet Routing Table: 884 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3397 Number of LACNIC addresses announced to Internet: 107989056 Equivalent to 6 /8s, 111 /16s and 200 /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: 10981 Total AfriNIC prefixes after maximum aggregation: 2334 AfriNIC Deaggregation factor: 4.70 Prefixes being announced from the AfriNIC address blocks: 13695 Unique aggregates announced from the AfriNIC address blocks: 4244 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 46.90 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 155 Number of AfriNIC addresses announced to Internet: 46319104 Equivalent to 2 /8s, 194 /16s and 198 /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 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2153 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 542 894 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14314 40863 5422 AMAZON-02, US 22773 3349 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2980 232 1745 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2361 2622 1110 DNIC-ASBLK-00306-00371, US 6167 1931 3987 518 CELLCO-PART, US 11776 1900 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 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 1193 93 973 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 8452 770 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 642 108 503 TELLCOM-AS, TR 8376 591 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 6810 1859 781 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1658 239 1205 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 22884 694 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 27651 651 92 45 ENTEL CHILE S.A., CL 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 1303 572 23 RAYA-AS, EG 29571 1036 101 60 ORANGE-COTE-IVOIRE, CI 37069 999 1096 13 MOBINIL, EG 24863 981 389 23 LINKdotNET-AS, EG 36935 638 522 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 576 82 3 KENET-AS, KE 36992 516 1109 221 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 14314 40863 5422 AMAZON-02, US 9808 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 6810 1859 781 UNINET, MX 22773 3349 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2980 232 1745 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2361 2622 1110 DNIC-ASBLK-00306-00371, US 11830 1989 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 12721 12607 CHINAMOBILE-CN China Mobile Communications Grou 8151 6810 6029 UNINET, MX 22773 3349 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1900 1685 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1931 1413 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 23.140.216.0/24 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 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /12:157 /13:214 /14:585 /15:1108 /16:7576 /17:3408 /18:4093 /19:7545 /20:13131 /21:15791 /22:28138 /23:28986 /24:165923 /25:67 /26:83 /27:53 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3589 6810 UNINET, MX 22773 2502 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2414 14314 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1039 1394 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 969 1658 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1900 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 2:456 3:929 4:5 5:790 6:145 7:5 8:640 9:3 11:171 12:890 13:500 14:118 15:339 16:264 17:3 18:896 20:192 21:4 22:188 23:2556 24:686 27:32 29:19 31:480 32:12 34:12 35:175 36:3085 37:827 38:2443 39:635 40:93 41:1061 42:21 43:209 44:28 45:4256 46:977 47:114 49:21 50:478 51:383 52:1437 54:354 55:1113 56:11 57:23 58:17 59:33 60:31 61:53 62:517 63:774 64:1946 65:1093 66:1580 67:1068 68:360 69:1218 70:446 71:184 72:701 74:953 75:321 76:250 77:426 78:340 79:232 80:298 81:362 82:695 83:224 84:315 85:557 86:251 87:207 88:305 89:825 90:105 91:937 92:687 93:439 94:955 95:645 96:257 97:53 98:489 99:227 100:28 101:21 102:380 103:1217 104:1675 105:188 106:54 107:1548 108:518 109:381 110:52 111:2247 112:868 113:30 114:51 115:16 116:53 117:1214 118:67 119:92 120:1504 121:44 122:60 123:130 124:76 125:26 126:1 128:542 129:398 130:640 131:1083 132:571 133:221 134:479 135:122 136:686 137:497 138:1014 139:435 140:689 141:460 142:979 143:860 144:400 145:153 146:666 147:485 148:1017 149:766 150:207 151:772 152:503 153:180 154:956 155:909 156:934 157:436 158:581 159:727 160:898 161:724 162:1016 163:446 164:753 165:625 166:809 167:701 168:1502 169:162 170:1858 171:99 172:1314 173:818 174:361 175:93 176:474 177:922 178:583 179:915 180:38 181:2329 182:25 183:1166 184:451 185:3268 186:3150 187:1707 188:809 189:1843 190:6189 191:550 192:5150 193:1800 194:1134 195:927 196:706 197:1107 198:2701 199:5169 200:4447 201:3567 202:969 203:712 204:2198 205:1817 206:1612 207:1591 208:1556 209:1965 210:345 211:475 212:897 213:752 214:958 215:39 216:2494 217:464 218:596 219:18 220:32 221:452 222:24 223:1263 End of report