IPv4 R&E Routing Table Report 20:15 GMT Tue 10 Jun, 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: 264193 Prefixes after maximum aggregation (per Origin AS): 115803 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 136617 Number of IPv4 prefixes with a valid ROA: 119688 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 144462 Total ASes present in the Internet Routing Table: 20028 Prefixes per ASN: 13.19 Origin-only ASes present in the Internet Routing Table: 17268 Origin ASes announcing only one prefix: 7804 Transit ASes present in the Internet Routing Table: 2760 Transit-only ASes present in the Internet Routing Table: 735 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 308 Number of instances of unregistered ASNs: 340 Number of 32-bit ASNs allocated by the RIRs: 46631 Number of 32-bit ASNs visible in the Routing Table: 7728 Prefixes from 32-bit ASNs in the Routing Table: 29159 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 106 Number of addresses announced to Internet: 1557597661 Equivalent to 92 /8s, 215 /16s and 13 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83848 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31978 Total APNIC prefixes after maximum aggregation: 7139 APNIC Deaggregation factor: 4.48 Prefixes being announced from the APNIC address blocks: 31027 Unique aggregates announced from the APNIC address blocks: 7380 APNIC Region origin ASes present in the Internet Routing Table: 1188 APNIC Prefixes per ASN: 26.12 APNIC Region origin ASes announcing only one prefix: 463 APNIC Region transit ASes present in the Internet Routing Table: 194 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 556 Number of APNIC addresses announced to Internet: 166417260 Equivalent to 9 /8s, 235 /16s and 83 /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: 125069 Total ARIN prefixes after maximum aggregation: 65692 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 122462 Unique aggregates announced from the ARIN address blocks: 66219 ARIN Region origin ASes present in the Internet Routing Table: 9326 ARIN Prefixes per ASN: 13.13 ARIN Region origin ASes announcing only one prefix: 3884 ARIN Region transit ASes present in the Internet Routing Table: 865 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: 2194 Number of ARIN addresses announced to Internet: 960832481 Equivalent to 57 /8s, 69 /16s and 35 /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: 50222 Total RIPE prefixes after maximum aggregation: 26751 RIPE Deaggregation factor: 1.88 Prefixes being announced from the RIPE address blocks: 52053 Unique aggregates announced from the RIPE address blocks: 37789 RIPE Region origin ASes present in the Internet Routing Table: 4644 RIPE Prefixes per ASN: 11.21 RIPE Region origin ASes announcing only one prefix: 1950 RIPE Region transit ASes present in the Internet Routing Table: 700 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1918 Number of RIPE addresses announced to Internet: 286525264 Equivalent to 17 /8s, 20 /16s and 7 /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: 45727 Total LACNIC prefixes after maximum aggregation: 13648 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 44828 Unique aggregates announced from the LACNIC address blocks: 20318 LACNIC Region origin ASes present in the Internet Routing Table: 3725 LACNIC Prefixes per ASN: 12.03 LACNIC Region origin ASes announcing only one prefix: 1397 LACNIC Region transit ASes present in the Internet Routing Table: 790 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2904 Number of LACNIC addresses announced to Internet: 97738304 Equivalent to 5 /8s, 211 /16s and 94 /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: 10889 Total AfriNIC prefixes after maximum aggregation: 2369 AfriNIC Deaggregation factor: 4.60 Prefixes being announced from the AfriNIC address blocks: 13717 Unique aggregates announced from the AfriNIC address blocks: 4806 AfriNIC Region origin ASes present in the Internet Routing Table: 288 AfriNIC Prefixes per ASN: 47.63 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 46040832 Equivalent to 2 /8s, 190 /16s and 135 /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 10891 8758 99 CHINAMOBILE-CN China Mobile Communication 56046 2080 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1632 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 867 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 480 804 160 ALIBABA-CN-NET Alibaba US Technology Co., 17676 464 8751 151 GIGAINFRA SoftBank Corp., JP 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 13659 40937 5229 AMAZON-02, US 22773 3341 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2785 212 1710 USDA-1, US 36352 2553 209 1127 AS-COLOCROSSING, US 367 2445 2911 1173 DNIC-ASBLK-00306-00371, US 7018 2034 22862 1493 ATT-INTERNET4, US 6167 1903 3929 507 CELLCO-PART, US 11776 1900 259 214 ATLANTICBB-JOHNSTOWN, US 209 1660 4889 271 CENTURYLINK-US-LEGACY-QWEST, 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 1153 90 941 AKAMAI-ASN1, NL 3257 1000 2081 781 GTT-BACKBONE GTT, US 3215 891 4818 291 France Telecom - Orange, FR 25019 812 1301 129 SAUDINETSTC-AS, SA 8452 793 1841 16 TE-AS TE-AS, EG 34984 671 73 406 TELLCOM-AS, TR 212238 628 45 554 CDNEXT, GB 8376 574 53 22 Jordan Data Communications, JO 51167 568 113 251 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 7684 2089 871 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1676 243 1214 Telmex Colombia S.A., CO 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 26615 1035 2503 52 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 627 90 33 ENTEL CHILE S.A., CL 26599 555 2884 69 TELEFONICA BRASIL S.A, BR 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 24863 1463 389 16 LINKdotNET-AS, EG 29571 1162 101 73 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 24835 843 535 35 RAYA-AS, EG 36992 604 1228 124 ETISALAT-MISR, EG 36914 562 82 3 KENET-AS, KE 36935 535 116 145 Vodafone-, EG 36903 495 231 340 MT-MPLS, MA 37069 469 1046 15 MOBINIL, EG 2018 373 318 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 13659 40937 5229 AMAZON-02, US 9808 10891 8758 99 CHINAMOBILE-CN China Mobile Communication 8151 7684 2089 871 UNINET, MX 22773 3341 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2785 212 1710 USDA-1, US 36352 2553 209 1127 AS-COLOCROSSING, US 367 2445 2911 1173 DNIC-ASBLK-00306-00371, US 56046 2080 811 188 CMNET-JIANGSU-AP China Mobile communicati 7018 2034 22862 1493 ATT-INTERNET4, 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 10891 10792 CHINAMOBILE-CN China Mobile Communications Grou 8151 7684 6813 UNINET, MX 22773 3341 3175 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 56046 2080 1892 CMNET-JIANGSU-AP China Mobile communications co 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1900 1686 ATLANTICBB-JOHNSTOWN, US 56041 1632 1542 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1463 1447 LINKdotNET-AS, EG 56047 1483 1433 CMNET-HUNAN-AP China Mobile communications corp 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 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 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 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 /8:13 /9:10 /10:30 /11:41 /12:150 /13:208 /14:572 /15:1102 /16:7627 /17:3439 /18:4225 /19:7648 /20:12564 /21:15416 /22:27272 /23:28075 /24:155578 /25:62 /26:82 /27:34 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3990 7684 UNINET, MX 22773 2493 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2371 13659 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1031 2553 AS-COLOCROSSING, US 19901 989 1288 BRSPD-PUBLIC, US 10620 971 1676 Telmex Colombia S.A., CO 209 964 1660 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:457 3:809 4:5 5:800 6:149 7:5 8:671 11:171 12:987 13:395 14:115 15:306 16:247 17:5 18:888 20:187 21:4 22:188 23:2603 24:638 27:22 29:19 31:581 32:9 33:1 34:10 35:181 36:1885 37:973 38:1961 39:552 40:63 41:982 42:21 43:189 44:36 45:3650 46:992 47:81 49:19 50:349 51:387 52:1397 54:317 55:1086 56:11 57:20 58:16 59:30 60:16 61:75 62:539 63:748 64:1969 65:1085 66:1533 67:990 68:402 69:1127 70:475 71:197 72:649 74:938 75:320 76:248 77:483 78:358 79:294 80:302 81:383 82:744 83:241 84:339 85:421 86:246 87:211 88:298 89:837 90:104 91:955 92:634 93:512 94:926 95:664 96:289 97:53 98:458 99:191 100:36 101:21 102:337 103:1220 104:1661 105:214 106:3 107:1563 108:549 109:407 110:67 111:1922 112:522 113:38 114:41 115:24 116:57 117:1037 118:58 119:109 120:1295 121:43 122:67 123:76 124:61 125:25 128:486 129:396 130:674 131:938 132:573 133:211 134:451 135:112 136:602 137:507 138:854 139:425 140:708 141:471 142:1032 143:699 144:428 145:149 146:685 147:516 148:908 149:802 150:214 151:637 152:480 153:130 154:1185 155:867 156:1077 157:372 158:557 159:734 160:870 161:661 162:1015 163:425 164:718 165:524 166:795 167:666 168:1172 169:158 170:1590 171:126 172:1369 173:798 174:284 175:61 176:786 177:899 178:514 179:727 180:74 181:1769 182:27 183:974 184:454 185:3554 186:2088 187:1574 188:836 189:1850 190:4131 191:466 192:5189 193:1908 194:1253 195:932 196:678 197:1557 198:2776 199:4938 200:3640 201:3261 202:953 203:705 204:2163 205:1723 206:1589 207:1550 208:1452 209:1918 210:295 211:424 212:1039 213:775 214:941 215:37 216:2565 217:425 218:528 219:18 220:28 221:389 222:24 223:874 End of report