IPv4 R&E Routing Table Report 20:15 GMT Thu 23 Oct, 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: 278727 Prefixes after maximum aggregation (per Origin AS): 118266 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142880 Number of IPv4 prefixes with a valid ROA: 129878 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148652 Total ASes present in the Internet Routing Table: 20292 Prefixes per ASN: 13.74 Origin-only ASes present in the Internet Routing Table: 17480 Origin ASes announcing only one prefix: 7867 Transit ASes present in the Internet Routing Table: 2812 Transit-only ASes present in the Internet Routing Table: 721 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: 289 Number of instances of unregistered ASNs: 318 Number of 32-bit ASNs allocated by the RIRs: 47788 Number of 32-bit ASNs visible in the Routing Table: 8063 Prefixes from 32-bit ASNs in the Routing Table: 32875 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 96 Number of addresses announced to Internet: 1629092253 Equivalent to 97 /8s, 25 /16s and 249 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 87015 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38946 Total APNIC prefixes after maximum aggregation: 8233 APNIC Deaggregation factor: 4.73 Prefixes being announced from the APNIC address blocks: 37678 Unique aggregates announced from the APNIC address blocks: 8347 APNIC Region origin ASes present in the Internet Routing Table: 1149 APNIC Prefixes per ASN: 32.79 APNIC Region origin ASes announcing only one prefix: 450 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: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 534 Number of APNIC addresses announced to Internet: 175023460 Equivalent to 10 /8s, 110 /16s and 165 /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: 127467 Total ARIN prefixes after maximum aggregation: 65795 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125262 Unique aggregates announced from the ARIN address blocks: 68905 ARIN Region origin ASes present in the Internet Routing Table: 9200 ARIN Prefixes per ASN: 13.62 ARIN Region origin ASes announcing only one prefix: 3839 ARIN Region transit ASes present in the Internet Routing Table: 845 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2190 Number of ARIN addresses announced to Internet: 1020616937 Equivalent to 60 /8s, 213 /16s and 96 /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: 44960 Total RIPE prefixes after maximum aggregation: 25102 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47302 Unique aggregates announced from the RIPE address blocks: 35775 RIPE Region origin ASes present in the Internet Routing Table: 4429 RIPE Prefixes per ASN: 10.68 RIPE Region origin ASes announcing only one prefix: 1910 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1830 Number of RIPE addresses announced to Internet: 279827536 Equivalent to 16 /8s, 173 /16s and 212 /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: 56457 Total LACNIC prefixes after maximum aggregation: 16412 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54396 Unique aggregates announced from the LACNIC address blocks: 24100 LACNIC Region origin ASes present in the Internet Routing Table: 4366 LACNIC Prefixes per ASN: 12.46 LACNIC Region origin ASes announcing only one prefix: 1558 LACNIC Region transit ASes present in the Internet Routing Table: 871 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: 3337 Number of LACNIC addresses announced to Internet: 108100864 Equivalent to 6 /8s, 113 /16s and 125 /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: 10608 Total AfriNIC prefixes after maximum aggregation: 2490 AfriNIC Deaggregation factor: 4.26 Prefixes being announced from the AfriNIC address blocks: 13993 Unique aggregates announced from the AfriNIC address blocks: 5662 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 46.64 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 172 Number of AfriNIC addresses announced to Internet: 45418240 Equivalent to 2 /8s, 181 /16s and 7 /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 13112 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 940 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 654 235 367 CMNET-JIANGXI-AP China Mobile communicati 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 41103 5382 AMAZON-02, US 22773 4277 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3120 241 1748 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 6167 1955 4050 508 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1865 2116 872 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1447 702 723 BRIGHTSPEED, 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 20940 1221 95 1003 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 868 1841 15 TE-AS TE-AS, EG 212238 681 47 600 CDNEXT, GB 34984 575 88 456 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 559 53 25 Jordan Data Communications, JO 35819 542 538 91 MOBILY-AS Etihad Etisalat Company Mobily, 5511 527 129 444 OPENTRANSIT, FR 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 7284 1964 780 UNINET, MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 10620 1671 236 1207 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1279 371 23 Telefonica del Peru S.A.A., PE 11664 1263 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1011 2486 56 TIM SA, BR 18881 900 1127 31 TELEFONICA BRASIL S.A, BR 12252 696 164 24 America Movil Peru S.A.C., PE 52468 649 40 194 UFINET PANAMA S.A., PA 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 1362 454 94 RAYA-AS, EG 24863 1016 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 36935 491 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 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 41103 5382 AMAZON-02, US 9808 13112 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7284 1964 780 UNINET, MX 22773 4277 3069 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3218 54766 2469 DNIC-AS-00749, US 56046 3173 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3120 241 1748 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 11830 1991 369 64 Instituto Costarricense de Electricidad y 6167 1955 4050 508 CELLCO-PART, US 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 13112 12993 CHINAMOBILE-CN China Mobile Communications Grou 8151 7284 6504 UNINET, MX 22773 4277 3910 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3173 2980 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1927 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1955 1447 CELLCO-PART, US 36352 2573 1408 AS-COLOCROSSING, 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US 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 /10:31 /11:51 /12:161 /13:214 /14:587 /15:1096 /16:7674 /17:3412 /18:4149 /19:7642 /20:12605 /21:15852 /22:28369 /23:28729 /24:167892 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3952 7284 UNINET, MX 22773 2625 4277 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14356 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 19901 1060 1447 BRIGHTSPEED, US 36352 1038 2573 AS-COLOCROSSING, US 10620 1001 1671 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 938 1263 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:275 3:941 4:5 5:607 6:157 7:5 8:611 9:4 11:171 12:883 13:488 14:172 15:344 16:278 17:3 18:900 20:198 21:4 22:188 23:2694 24:594 27:56 29:19 31:442 32:13 34:10 35:187 36:3220 37:526 38:2596 39:738 40:94 41:1035 42:145 43:196 44:27 45:4213 46:909 47:147 49:21 50:473 51:391 52:1458 54:350 55:1105 56:11 57:32 58:17 59:33 60:91 61:61 62:529 63:738 64:1940 65:1022 66:1983 67:1032 68:505 69:1209 70:442 71:171 72:735 74:992 75:309 76:238 77:363 78:297 79:262 80:316 81:390 82:755 83:202 84:336 85:593 86:243 87:178 88:287 89:685 90:105 91:898 92:660 93:413 94:849 95:417 96:262 97:50 98:405 99:244 100:22 101:20 102:468 103:1059 104:1580 105:174 106:67 107:1677 108:525 109:346 110:92 111:2508 112:1113 113:32 114:39 115:65 116:56 117:1436 118:84 119:72 120:1666 121:31 122:62 123:178 124:85 125:24 128:549 129:401 130:661 131:1052 132:578 133:220 134:503 135:124 136:668 137:505 138:1003 139:432 140:736 141:365 142:1215 143:886 144:414 145:143 146:653 147:476 148:981 149:721 150:211 151:787 152:700 153:178 154:1244 155:951 156:1178 157:443 158:599 159:744 160:616 161:706 162:1001 163:432 164:758 165:640 166:802 167:681 168:1493 169:156 170:1853 171:101 172:1294 173:789 174:285 175:105 176:410 177:886 178:635 179:898 180:35 181:2424 182:29 183:1467 184:453 185:3038 186:3243 187:1679 188:761 189:1877 190:6272 191:542 192:5075 193:1708 194:1083 195:919 196:711 197:1109 198:2705 199:5223 200:4401 201:3699 202:1014 203:776 204:2156 205:1813 206:1519 207:1731 208:1597 209:1926 210:344 211:511 212:973 213:709 214:955 215:40 216:2518 217:473 218:657 219:18 220:87 221:503 222:24 223:1532 End of report