IPv4 R&E Routing Table Report 20:15 GMT Sun 02 Nov, 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: 279168 Prefixes after maximum aggregation (per Origin AS): 118280 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 144770 Number of IPv4 prefixes with a valid ROA: 133204 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 145764 Total ASes present in the Internet Routing Table: 20587 Prefixes per ASN: 13.56 Origin-only ASes present in the Internet Routing Table: 17768 Origin ASes announcing only one prefix: 7986 Transit ASes present in the Internet Routing Table: 2819 Transit-only ASes present in the Internet Routing Table: 704 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: 278 Number of instances of unregistered ASNs: 307 Number of 32-bit ASNs allocated by the RIRs: 47879 Number of 32-bit ASNs visible in the Routing Table: 8204 Prefixes from 32-bit ASNs in the Routing Table: 33918 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: 88 Number of addresses announced to Internet: 1621008285 Equivalent to 96 /8s, 158 /16s and 159 /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: 89848 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38725 Total APNIC prefixes after maximum aggregation: 8134 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 37468 Unique aggregates announced from the APNIC address blocks: 8027 APNIC Region origin ASes present in the Internet Routing Table: 1142 APNIC Prefixes per ASN: 32.81 APNIC Region origin ASes announcing only one prefix: 450 APNIC Region transit ASes present in the Internet Routing Table: 183 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: 527 Number of APNIC addresses announced to Internet: 163973988 Equivalent to 9 /8s, 198 /16s and 11 /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: 124841 Total ARIN prefixes after maximum aggregation: 64071 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 122695 Unique aggregates announced from the ARIN address blocks: 69467 ARIN Region origin ASes present in the Internet Routing Table: 9214 ARIN Prefixes per ASN: 13.32 ARIN Region origin ASes announcing only one prefix: 3858 ARIN Region transit ASes present in the Internet Routing Table: 843 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: 2205 Number of ARIN addresses announced to Internet: 1021940201 Equivalent to 60 /8s, 233 /16s and 145 /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: 48022 Total RIPE prefixes after maximum aggregation: 26889 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 50295 Unique aggregates announced from the RIPE address blocks: 37917 RIPE Region origin ASes present in the Internet Routing Table: 4720 RIPE Prefixes per ASN: 10.66 RIPE Region origin ASes announcing only one prefix: 2006 RIPE Region transit ASes present in the Internet Routing Table: 737 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: 1943 Number of RIPE addresses announced to Internet: 280886352 Equivalent to 16 /8s, 189 /16s and 252 /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: 56799 Total LACNIC prefixes after maximum aggregation: 16573 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54720 Unique aggregates announced from the LACNIC address blocks: 24237 LACNIC Region origin ASes present in the Internet Routing Table: 4391 LACNIC Prefixes per ASN: 12.46 LACNIC Region origin ASes announcing only one prefix: 1564 LACNIC Region transit ASes present in the Internet Routing Table: 851 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: 3362 Number of LACNIC addresses announced to Internet: 108464640 Equivalent to 6 /8s, 119 /16s and 10 /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: 10503 Total AfriNIC prefixes after maximum aggregation: 2388 AfriNIC Deaggregation factor: 4.40 Prefixes being announced from the AfriNIC address blocks: 13902 Unique aggregates announced from the AfriNIC address blocks: 5035 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 47.45 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 80 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: 45640448 Equivalent to 2 /8s, 184 /16s and 107 /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 13183 8727 117 CHINAMOBILE-CN China Mobile Communication 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1731 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1717 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 701 497 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 14440 41088 5383 AMAZON-02, US 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1857 2118 865 DNIC-ASBLK-00306-00371, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1449 702 723 BRIGHTSPEED, US 20057 1435 1001 112 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 20940 1226 96 1004 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 212238 657 46 577 CDNEXT, GB 8376 569 53 24 Jordan Data Communications, JO 34984 569 90 460 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 5511 528 129 445 OPENTRANSIT, FR 35819 430 427 106 MOBILY-AS Etihad Etisalat Company Mobily, 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 7458 2012 790 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1665 235 1202 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1296 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1273 371 23 Telefonica del Peru S.A.A., PE 26615 1023 2486 56 TIM SA, BR 18881 907 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 651 41 196 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 1408 522 26 RAYA-AS, EG 24863 1019 389 22 LINKdotNET-AS, EG 37069 981 1096 13 MOBINIL, EG 36992 597 1088 298 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 563 82 3 KENET-AS, KE 36935 486 515 10 Vodafone-, EG 29571 481 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 14440 41088 5383 AMAZON-02, US 9808 13183 8727 117 CHINAMOBILE-CN China Mobile Communication 8151 7458 2012 790 UNINET, MX 22773 4631 3091 402 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 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, 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 13183 13066 CHINAMOBILE-CN China Mobile Communications Grou 8151 7458 6668 UNINET, MX 22773 4631 4229 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 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1717 1667 CMNET-HUNAN-AP China Mobile communications corp 56041 1731 1653 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1958 1454 CELLCO-PART, US 36352 2573 1405 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: 327924 EXCELSIMO-NETWORKS, NG 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 /11:52 /12:156 /13:215 /14:585 /15:1103 /16:7587 /17:3400 /18:4106 /19:7674 /20:12530 /21:16001 /22:28729 /23:28944 /24:167792 /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 4053 7458 UNINET, MX 22773 2985 4631 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2436 14440 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1060 1449 BRIGHTSPEED, US 36352 1035 2573 AS-COLOCROSSING, US 10620 996 1665 Telmex Colombia S.A., CO 11664 971 1296 Techtel LMDS Comunicaciones Interactivas S.A., AR 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 884 1908 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 2:356 3:964 4:5 5:740 6:159 7:5 8:620 9:5 11:171 12:883 13:491 14:173 15:343 16:278 17:3 18:904 20:199 21:4 22:188 23:2660 24:594 27:57 29:19 31:510 32:13 34:9 35:186 36:3228 37:606 38:2585 39:752 40:91 41:997 42:146 43:200 44:25 45:4388 46:981 47:146 49:21 50:476 51:390 52:1456 54:350 55:1093 56:11 57:31 58:17 59:34 60:91 61:61 62:569 63:731 64:1968 65:1021 66:2261 67:1114 68:494 69:1196 70:441 71:171 72:738 74:1000 75:304 76:235 77:432 78:372 79:282 80:357 81:468 82:794 83:202 84:341 85:670 86:244 87:254 88:289 89:698 90:105 91:939 92:700 93:455 94:914 95:501 96:266 97:48 98:406 99:251 100:22 101:21 102:443 103:1059 104:1586 105:174 106:67 107:1693 108:521 109:381 110:92 111:2507 112:1146 113:32 114:39 115:63 116:54 117:1399 118:84 119:86 120:1689 121:31 122:61 123:178 124:86 125:23 128:562 129:374 130:665 131:1078 132:570 133:221 134:507 135:124 136:672 137:488 138:1007 139:441 140:733 141:374 142:1183 143:902 144:424 145:148 146:656 147:456 148:1000 149:723 150:206 151:803 152:750 153:181 154:1221 155:956 156:1213 157:440 158:603 159:779 160:613 161:690 162:1001 163:437 164:770 165:612 166:609 167:686 168:1471 169:155 170:1872 171:103 172:1307 173:814 174:286 175:103 176:428 177:901 178:670 179:895 180:34 181:2432 182:29 183:1508 184:452 185:3537 186:3277 187:1694 188:825 189:1859 190:6372 191:554 192:5098 193:1772 194:1153 195:960 196:707 197:1095 198:2699 199:2497 200:4327 201:3668 202:995 203:774 204:2162 205:1805 206:1504 207:1723 208:1531 209:1925 210:363 211:501 212:996 213:754 214:947 215:40 216:2511 217:506 218:658 219:18 220:87 221:484 222:24 223:1537 End of report