IPv4 R&E Routing Table Report 20:15 GMT Wed 03 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: 275948 Prefixes after maximum aggregation (per Origin AS): 118090 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 140485 Number of IPv4 prefixes with a valid ROA: 129981 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 145925 Total ASes present in the Internet Routing Table: 20447 Prefixes per ASN: 13.50 Origin-only ASes present in the Internet Routing Table: 17629 Origin ASes announcing only one prefix: 7836 Transit ASes present in the Internet Routing Table: 2818 Transit-only ASes present in the Internet Routing Table: 687 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: 337 Number of instances of unregistered ASNs: 366 Number of 32-bit ASNs allocated by the RIRs: 47312 Number of 32-bit ASNs visible in the Routing Table: 8148 Prefixes from 32-bit ASNs in the Routing Table: 33577 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: 1617829125 Equivalent to 96 /8s, 110 /16s and 29 /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: 87463 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35446 Total APNIC prefixes after maximum aggregation: 7338 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 34458 Unique aggregates announced from the APNIC address blocks: 7363 APNIC Region origin ASes present in the Internet Routing Table: 1185 APNIC Prefixes per ASN: 29.08 APNIC Region origin ASes announcing only one prefix: 462 APNIC Region transit ASes present in the Internet Routing Table: 186 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: 553 Number of APNIC addresses announced to Internet: 162719852 Equivalent to 9 /8s, 178 /16s and 232 /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: 125907 Total ARIN prefixes after maximum aggregation: 66096 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124272 Unique aggregates announced from the ARIN address blocks: 67836 ARIN Region origin ASes present in the Internet Routing Table: 9212 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3829 ARIN Region transit ASes present in the Internet Routing Table: 858 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: 2168 Number of ARIN addresses announced to Internet: 1023336969 Equivalent to 60 /8s, 254 /16s and 226 /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: 47365 Total RIPE prefixes after maximum aggregation: 25477 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49639 Unique aggregates announced from the RIPE address blocks: 36350 RIPE Region origin ASes present in the Internet Routing Table: 4460 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1874 RIPE Region transit ASes present in the Internet Routing Table: 668 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1832 Number of RIPE addresses announced to Internet: 277512528 Equivalent to 16 /8s, 138 /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: 56255 Total LACNIC prefixes after maximum aggregation: 16637 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 54349 Unique aggregates announced from the LACNIC address blocks: 24810 LACNIC Region origin ASes present in the Internet Routing Table: 4481 LACNIC Prefixes per ASN: 12.13 LACNIC Region origin ASes announcing only one prefix: 1566 LACNIC Region transit ASes present in the Internet Routing Table: 906 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: 3445 Number of LACNIC addresses announced to Internet: 108164416 Equivalent to 6 /8s, 114 /16s and 117 /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: 10638 Total AfriNIC prefixes after maximum aggregation: 2285 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 13140 Unique aggregates announced from the AfriNIC address blocks: 4037 AfriNIC Region origin ASes present in the Internet Routing Table: 287 AfriNIC Prefixes per ASN: 45.78 AfriNIC Region origin ASes announcing only one prefix: 105 AfriNIC Region transit ASes present in the Internet Routing Table: 72 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: 150 Number of AfriNIC addresses announced to Internet: 45985792 Equivalent to 2 /8s, 189 /16s and 176 /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 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 541 894 138 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 14145 40852 5367 AMAZON-02, US 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2978 232 1739 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2371 2671 1111 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1439 1019 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 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1205 94 981 AKAMAI-ASN1, NL 3215 924 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 8452 770 1841 16 TE-AS TE-AS, EG 212238 688 50 612 CDNEXT, GB 34984 609 92 476 TELLCOM-AS, TR 8376 593 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 6802 1854 784 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1177 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 803 278 29 Techtel LMDS Comunicaciones Interactivas 22884 693 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 1210 544 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 36914 583 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36992 497 1089 216 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 36935 422 515 10 Vodafone-, EG 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 14145 40852 5367 AMAZON-02, US 9808 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 6802 1854 784 UNINET, MX 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2978 232 1739 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2371 2671 1111 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 6802 6018 UNINET, MX 22773 3350 3173 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 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 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 /14:584 /15:1108 /16:7591 /17:3409 /18:4103 /19:7542 /20:13148 /21:15716 /22:28022 /23:29003 /24:165002 /25:67 /26:83 /27:52 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3582 6802 UNINET, MX 22773 2504 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2398 14145 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1038 1393 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 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 2:453 3:911 4:5 5:778 6:144 7:5 8:644 9:3 11:171 12:881 13:479 14:118 15:338 16:264 17:3 18:891 20:193 21:4 22:188 23:2562 24:669 27:26 29:19 31:465 32:12 34:12 35:174 36:3080 37:787 38:2452 39:635 40:93 41:1052 42:21 43:206 44:27 45:4215 46:973 47:114 49:21 50:475 51:383 52:1429 54:356 55:1105 56:11 57:23 58:17 59:33 60:30 61:53 62:464 63:776 64:1942 65:1090 66:1578 67:1076 68:365 69:1229 70:447 71:184 72:693 74:956 75:321 76:249 77:403 78:336 79:236 80:304 81:363 82:701 83:204 84:308 85:452 86:250 87:208 88:301 89:690 90:106 91:929 92:671 93:432 94:950 95:647 96:258 97:53 98:493 99:221 100:28 101:21 102:373 103:1205 104:1670 105:174 106:54 107:1550 108:522 109:380 110:52 111:2247 112:868 113:30 114:50 115:16 116:53 117:1214 118:67 119:67 120:1504 121:45 122:61 123:130 124:76 125:26 126:1 128:541 129:398 130:645 131:1087 132:568 133:221 134:509 135:122 136:686 137:500 138:1037 139:442 140:691 141:375 142:986 143:834 144:400 145:153 146:650 147:486 148:992 149:767 150:202 151:786 152:628 153:180 154:908 155:903 156:861 157:436 158:584 159:715 160:897 161:676 162:1017 163:443 164:755 165:621 166:808 167:705 168:1518 169:162 170:1874 171:100 172:1324 173:814 174:362 175:90 176:472 177:951 178:584 179:913 180:41 181:2332 182:25 183:1166 184:451 185:3225 186:3132 187:1733 188:755 189:1829 190:6096 191:554 192:5163 193:1782 194:1152 195:866 196:698 197:1107 198:2704 199:5172 200:4433 201:3546 202:985 203:707 204:2196 205:1821 206:1597 207:1603 208:1565 209:2017 210:345 211:476 212:888 213:723 214:959 215:39 216:2498 217:460 218:596 219:18 220:32 221:452 222:24 223:1263 End of report