IPv4 R&E Routing Table Report 20:15 GMT Tue 28 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: 282158 Prefixes after maximum aggregation (per Origin AS): 119532 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 144065 Number of IPv4 prefixes with a valid ROA: 133202 Number of IPv4 prefixes with an invalid ROA: 197 Number of IPv4 prefixes with no ROA: 148759 Total ASes present in the Internet Routing Table: 20504 Prefixes per ASN: 13.76 Origin-only ASes present in the Internet Routing Table: 17685 Origin ASes announcing only one prefix: 7954 Transit ASes present in the Internet Routing Table: 2819 Transit-only ASes present in the Internet Routing Table: 695 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: 282 Number of instances of unregistered ASNs: 311 Number of 32-bit ASNs allocated by the RIRs: 47817 Number of 32-bit ASNs visible in the Routing Table: 8136 Prefixes from 32-bit ASNs in the Routing Table: 33552 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: 89 Number of addresses announced to Internet: 1620815517 Equivalent to 96 /8s, 155 /16s and 174 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 89834 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38713 Total APNIC prefixes after maximum aggregation: 8162 APNIC Deaggregation factor: 4.74 Prefixes being announced from the APNIC address blocks: 37451 Unique aggregates announced from the APNIC address blocks: 8088 APNIC Region origin ASes present in the Internet Routing Table: 1141 APNIC Prefixes per ASN: 32.82 APNIC Region origin ASes announcing only one prefix: 441 APNIC Region transit ASes present in the Internet Routing Table: 186 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 526 Number of APNIC addresses announced to Internet: 163615076 Equivalent to 9 /8s, 192 /16s and 145 /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: 128182 Total ARIN prefixes after maximum aggregation: 65965 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 125929 Unique aggregates announced from the ARIN address blocks: 69391 ARIN Region origin ASes present in the Internet Routing Table: 9218 ARIN Prefixes per ASN: 13.66 ARIN Region origin ASes announcing only one prefix: 3852 ARIN Region transit ASes present in the Internet Routing Table: 850 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2198 Number of ARIN addresses announced to Internet: 1022080233 Equivalent to 60 /8s, 235 /16s and 180 /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: 47918 Total RIPE prefixes after maximum aggregation: 26391 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 50324 Unique aggregates announced from the RIPE address blocks: 37585 RIPE Region origin ASes present in the Internet Routing Table: 4674 RIPE Prefixes per ASN: 10.77 RIPE Region origin ASes announcing only one prefix: 1994 RIPE Region transit ASes present in the Internet Routing Table: 733 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1919 Number of RIPE addresses announced to Internet: 281388624 Equivalent to 16 /8s, 197 /16s and 166 /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: 56598 Total LACNIC prefixes after maximum aggregation: 16416 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54505 Unique aggregates announced from the LACNIC address blocks: 23933 LACNIC Region origin ASes present in the Internet Routing Table: 4359 LACNIC Prefixes per ASN: 12.50 LACNIC Region origin ASes announcing only one prefix: 1557 LACNIC Region transit ASes present in the Internet Routing Table: 850 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 26 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3326 Number of LACNIC addresses announced to Internet: 108155648 Equivalent to 6 /8s, 114 /16s and 83 /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: 10465 Total AfriNIC prefixes after maximum aggregation: 2367 AfriNIC Deaggregation factor: 4.42 Prefixes being announced from the AfriNIC address blocks: 13860 Unique aggregates announced from the AfriNIC address blocks: 4980 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 47.30 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: 167 Number of AfriNIC addresses announced to Internet: 45472256 Equivalent to 2 /8s, 181 /16s and 218 /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 13149 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3183 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 960 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 871 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 660 247 353 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 14398 41101 5369 AMAZON-02, US 22773 4640 3091 386 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 4155 3134 243 1750 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 6167 1959 4064 504 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1866 2117 874 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1443 701 728 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 1219 95 999 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 8452 877 1841 16 TE-AS TE-AS, EG 39891 874 55 22 ALJAWWALSTC-AS, SA 8764 832 212 84 TELIA-LIETUVA, LT 212238 642 45 564 CDNEXT, GB 34984 580 89 460 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 5511 528 129 445 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 7301 1974 779 UNINET, MX 11830 1990 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, 11664 1284 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1281 371 23 Telefonica del Peru S.A.A., PE 26615 1020 2486 56 TIM SA, BR 18881 902 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 650 41 193 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 1422 522 26 RAYA-AS, EG 24863 1023 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36914 567 82 3 KENET-AS, KE 20011 560 154 212 NTT-DATA-Inc, ZA 36992 559 1074 268 ETISALAT-MISR, EG 36935 486 515 10 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 477 215 340 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 14398 41101 5369 AMAZON-02, US 9808 13149 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7301 1974 779 UNINET, MX 22773 4640 3091 386 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 4155 3134 243 1750 USDA-1, US 36352 2573 210 1165 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1959 4064 504 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 13149 13030 CHINAMOBILE-CN China Mobile Communications Grou 8151 7301 6522 UNINET, MX 22773 4640 4254 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3183 2990 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 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 1959 1455 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 /12:158 /13:215 /14:585 /15:1103 /16:7578 /17:3408 /18:4084 /19:7648 /20:12788 /21:15966 /22:29072 /23:28854 /24:170354 /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 3958 7301 UNINET, MX 22773 2994 4640 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2424 14398 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1443 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 959 1284 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) ---------------------------------------------- 1:32 2:358 3:959 4:5 5:704 6:158 7:5 8:621 9:5 11:171 12:881 13:491 14:171 15:346 16:278 17:3 18:899 20:199 21:4 22:188 23:2678 24:595 27:56 29:19 31:488 32:13 34:9 35:187 36:3229 37:547 38:2565 39:738 40:92 41:1008 42:146 43:202 44:26 45:4312 46:934 47:147 49:21 50:478 51:390 52:1458 54:359 55:1105 56:11 57:32 58:17 59:34 60:91 61:61 62:560 63:741 64:1977 65:1039 66:2257 67:1120 68:493 69:1213 70:449 71:170 72:741 74:1008 75:308 76:234 77:420 78:359 79:281 80:349 81:455 82:803 83:204 84:337 85:650 86:245 87:257 88:296 89:699 90:105 91:927 92:695 93:439 94:911 95:482 96:264 97:48 98:405 99:244 100:22 101:20 102:430 103:1052 104:1591 105:174 106:67 107:1693 108:531 109:379 110:92 111:2500 112:1126 113:32 114:39 115:64 116:51 117:1441 118:85 119:70 120:1688 121:30 122:61 123:178 124:86 125:26 128:557 129:376 130:650 131:1064 132:579 133:221 134:505 135:122 136:675 137:490 138:1001 139:441 140:723 141:377 142:1235 143:903 144:423 145:146 146:655 147:477 148:970 149:722 150:210 151:792 152:702 153:179 154:1242 155:954 156:1155 157:445 158:599 159:750 160:612 161:705 162:1009 163:433 164:764 165:623 166:791 167:681 168:1487 169:156 170:1878 171:101 172:1316 173:795 174:288 175:108 176:422 177:898 178:653 179:891 180:35 181:2424 182:29 183:1493 184:437 185:3481 186:3277 187:1678 188:804 189:1875 190:6348 191:561 192:5078 193:1753 194:1135 195:1004 196:709 197:1086 198:2699 199:5245 200:4421 201:3698 202:996 203:776 204:2156 205:1810 206:1505 207:1728 208:1546 209:1925 210:362 211:503 212:1029 213:757 214:953 215:40 216:2530 217:471 218:657 219:18 220:87 221:481 222:24 223:1540 End of report