IPv4 R&E Routing Table Report 20:15 GMT Fri 17 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: 280628 Prefixes after maximum aggregation (per Origin AS): 118785 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 144081 Number of IPv4 prefixes with a valid ROA: 131631 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148787 Total ASes present in the Internet Routing Table: 20360 Prefixes per ASN: 13.78 Origin-only ASes present in the Internet Routing Table: 17583 Origin ASes announcing only one prefix: 7892 Transit ASes present in the Internet Routing Table: 2777 Transit-only ASes present in the Internet Routing Table: 680 Paths with bogon ASNs present in the IPv4 Routing Table: 50 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 290 Number of instances of unregistered ASNs: 356 Number of 32-bit ASNs allocated by the RIRs: 47739 Number of 32-bit ASNs visible in the Routing Table: 8062 Prefixes from 32-bit ASNs in the Routing Table: 33095 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 101 Number of addresses announced to Internet: 1630636453 Equivalent to 97 /8s, 49 /16s and 137 /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: 87844 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39357 Total APNIC prefixes after maximum aggregation: 8035 APNIC Deaggregation factor: 4.90 Prefixes being announced from the APNIC address blocks: 38168 Unique aggregates announced from the APNIC address blocks: 8492 APNIC Region origin ASes present in the Internet Routing Table: 1159 APNIC Prefixes per ASN: 32.93 APNIC Region origin ASes announcing only one prefix: 449 APNIC Region transit ASes present in the Internet Routing Table: 191 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: 527 Number of APNIC addresses announced to Internet: 174614636 Equivalent to 10 /8s, 104 /16s and 104 /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: 127565 Total ARIN prefixes after maximum aggregation: 65968 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 125399 Unique aggregates announced from the ARIN address blocks: 69145 ARIN Region origin ASes present in the Internet Routing Table: 9221 ARIN Prefixes per ASN: 13.60 ARIN Region origin ASes announcing only one prefix: 3857 ARIN Region transit ASes present in the Internet Routing Table: 852 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: 2186 Number of ARIN addresses announced to Internet: 1022269673 Equivalent to 60 /8s, 238 /16s and 152 /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: 45702 Total RIPE prefixes after maximum aggregation: 25515 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 48077 Unique aggregates announced from the RIPE address blocks: 36367 RIPE Region origin ASes present in the Internet Routing Table: 4483 RIPE Prefixes per ASN: 10.72 RIPE Region origin ASes announcing only one prefix: 1915 RIPE Region transit ASes present in the Internet Routing Table: 692 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: 1837 Number of RIPE addresses announced to Internet: 280384080 Equivalent to 16 /8s, 182 /16s and 82 /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: 57118 Total LACNIC prefixes after maximum aggregation: 16360 LACNIC Deaggregation factor: 3.49 Prefixes being announced from the LACNIC address blocks: 55068 Unique aggregates announced from the LACNIC address blocks: 24128 LACNIC Region origin ASes present in the Internet Routing Table: 4385 LACNIC Prefixes per ASN: 12.56 LACNIC Region origin ASes announcing only one prefix: 1560 LACNIC Region transit ASes present in the Internet Routing Table: 848 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: 3344 Number of LACNIC addresses announced to Internet: 109019648 Equivalent to 6 /8s, 127 /16s and 130 /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: 10596 Total AfriNIC prefixes after maximum aggregation: 2671 AfriNIC Deaggregation factor: 3.97 Prefixes being announced from the AfriNIC address blocks: 13815 Unique aggregates announced from the AfriNIC address blocks: 5853 AfriNIC Region origin ASes present in the Internet Routing Table: 304 AfriNIC Prefixes per ASN: 45.44 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 168 Number of AfriNIC addresses announced to Internet: 44238848 Equivalent to 2 /8s, 163 /16s and 8 /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 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1741 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 941 500 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 2907 611 2169 463 SINET-AS Research Organization of Informa 4780 598 272 207 SEEDNET Digital United Inc., TW 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 14350 41085 5382 AMAZON-02, US 22773 4297 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3118 241 1750 USDA-1, US 36352 2572 210 1168 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1878 2136 876 DNIC-ASBLK-00306-00371, US 209 1638 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1438 682 723 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 1244 98 1018 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 864 1841 16 TE-AS TE-AS, EG 212238 721 53 639 CDNEXT, GB 34984 619 105 477 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 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 7944 2152 772 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1672 240 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1273 371 23 Telefonica del Peru S.A.A., PE 11664 1253 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 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 1210 380 95 RAYA-AS, EG 24863 1018 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 576 82 3 KENET-AS, KE 29571 563 99 71 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 369 106 112 Vodafone-, EG 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 14350 41085 5382 AMAZON-02, US 9808 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7944 2152 772 UNINET, MX 22773 4297 3069 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3118 241 1750 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2572 210 1168 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1950 4046 511 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 13647 13528 CHINAMOBILE-CN China Mobile Communications Grou 8151 7944 7172 UNINET, MX 22773 4297 3933 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1663 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1950 1439 CELLCO-PART, US 36352 2572 1404 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 395438 UNALLOCATED 8.42.206.0/24 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 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 /11:50 /12:160 /13:214 /14:587 /15:1098 /16:7712 /17:3430 /18:4184 /19:7774 /20:12692 /21:16171 /22:28369 /23:28936 /24:168955 /25:64 /26:82 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4164 7944 UNINET, MX 22773 2648 4297 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2401 14350 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1438 BRIGHTSPEED, US 36352 1039 2572 AS-COLOCROSSING, US 10620 983 1672 Telmex Colombia S.A., CO 209 948 1638 CENTURYLINK-US-LEGACY-QWEST, US 11664 924 1253 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) ---------------------------------------------- 1:28 2:290 3:938 4:5 5:610 6:157 7:5 8:616 9:5 11:171 12:873 13:499 14:172 15:346 16:272 17:3 18:898 20:196 21:4 22:188 23:2701 24:599 27:56 29:19 31:478 32:13 34:11 35:183 36:3196 37:542 38:2532 39:748 40:94 41:1044 42:145 43:201 44:26 45:4219 46:937 47:148 49:23 50:473 51:391 52:1461 54:346 55:1094 56:11 57:28 58:17 59:33 60:147 61:93 62:539 63:736 64:1963 65:1013 66:1973 67:1051 68:509 69:1209 70:442 71:171 72:760 74:985 75:308 76:236 77:378 78:311 79:267 80:324 81:384 82:760 83:203 84:340 85:566 86:247 87:189 88:283 89:684 90:105 91:911 92:665 93:421 94:859 95:432 96:273 97:49 98:409 99:244 100:22 101:20 102:465 103:1050 104:1600 105:168 106:74 107:1701 108:529 109:352 110:92 111:2504 112:1104 113:32 114:39 115:63 116:56 117:1447 118:68 119:69 120:1649 121:30 122:94 123:190 124:178 125:21 128:552 129:402 130:662 131:1057 132:589 133:221 134:497 135:124 136:673 137:501 138:1003 139:448 140:736 141:362 142:1180 143:879 144:403 145:143 146:663 147:477 148:988 149:736 150:211 151:785 152:697 153:176 154:1112 155:982 156:1168 157:438 158:601 159:754 160:666 161:712 162:986 163:434 164:758 165:633 166:803 167:680 168:1516 169:153 170:1878 171:101 172:1297 173:796 174:289 175:124 176:406 177:885 178:672 179:858 180:36 181:2420 182:29 183:1491 184:441 185:3199 186:3222 187:1767 188:785 189:1932 190:6254 191:538 192:5063 193:1725 194:1080 195:957 196:767 197:1139 198:2700 199:5234 200:4363 201:3663 202:1004 203:799 204:2153 205:1819 206:1518 207:1734 208:1598 209:1951 210:490 211:518 212:999 213:705 214:945 215:40 216:2523 217:495 218:717 219:18 220:128 221:496 222:26 223:1506 End of report