IPv4 R&E Routing Table Report 20:15 GMT Wed 11 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: 263045 Prefixes after maximum aggregation (per Origin AS): 115452 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 136084 Number of IPv4 prefixes with a valid ROA: 119024 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 143978 Total ASes present in the Internet Routing Table: 19899 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 17109 Origin ASes announcing only one prefix: 7784 Transit ASes present in the Internet Routing Table: 2790 Transit-only ASes present in the Internet Routing Table: 802 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: 39 Max AS path prepend of ASN (133647) 32 Prefixes from unregistered ASNs in the Routing Table: 375 Number of instances of unregistered ASNs: 407 Number of 32-bit ASNs allocated by the RIRs: 46620 Number of 32-bit ASNs visible in the Routing Table: 7554 Prefixes from 32-bit ASNs in the Routing Table: 28390 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: 114 Number of addresses announced to Internet: 1556678109 Equivalent to 92 /8s, 201 /16s and 5 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83540 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 31961 Total APNIC prefixes after maximum aggregation: 7089 APNIC Deaggregation factor: 4.51 Prefixes being announced from the APNIC address blocks: 30999 Unique aggregates announced from the APNIC address blocks: 7334 APNIC Region origin ASes present in the Internet Routing Table: 1210 APNIC Prefixes per ASN: 25.62 APNIC Region origin ASes announcing only one prefix: 480 APNIC Region transit ASes present in the Internet Routing Table: 211 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 578 Number of APNIC addresses announced to Internet: 166388076 Equivalent to 9 /8s, 234 /16s and 225 /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: 124903 Total ARIN prefixes after maximum aggregation: 65524 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122404 Unique aggregates announced from the ARIN address blocks: 66118 ARIN Region origin ASes present in the Internet Routing Table: 9309 ARIN Prefixes per ASN: 13.15 ARIN Region origin ASes announcing only one prefix: 3874 ARIN Region transit ASes present in the Internet Routing Table: 879 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: 2200 Number of ARIN addresses announced to Internet: 960914401 Equivalent to 57 /8s, 70 /16s and 99 /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: 50081 Total RIPE prefixes after maximum aggregation: 26742 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 51838 Unique aggregates announced from the RIPE address blocks: 37671 RIPE Region origin ASes present in the Internet Routing Table: 4666 RIPE Prefixes per ASN: 11.11 RIPE Region origin ASes announcing only one prefix: 1969 RIPE Region transit ASes present in the Internet Routing Table: 725 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: 1938 Number of RIPE addresses announced to Internet: 286334288 Equivalent to 17 /8s, 17 /16s and 29 /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: 44542 Total LACNIC prefixes after maximum aggregation: 13375 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 43656 Unique aggregates announced from the LACNIC address blocks: 19966 LACNIC Region origin ASes present in the Internet Routing Table: 3475 LACNIC Prefixes per ASN: 12.56 LACNIC Region origin ASes announcing only one prefix: 1346 LACNIC Region transit ASes present in the Internet Routing Table: 734 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 34 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2674 Number of LACNIC addresses announced to Internet: 96933440 Equivalent to 5 /8s, 199 /16s and 22 /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: 11183 Total AfriNIC prefixes after maximum aggregation: 2456 AfriNIC Deaggregation factor: 4.55 Prefixes being announced from the AfriNIC address blocks: 14034 Unique aggregates announced from the AfriNIC address blocks: 4883 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 46.62 AfriNIC Region origin ASes announcing only one prefix: 115 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 164 Number of AfriNIC addresses announced to Internet: 46058752 Equivalent to 2 /8s, 190 /16s and 205 /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 513 848 135 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 13699 40940 5243 AMAZON-02, US 22773 3342 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2791 212 1704 USDA-1, US 36352 2554 209 1128 AS-COLOCROSSING, US 367 2424 2899 1163 DNIC-ASBLK-00306-00371, US 7018 2023 22875 1485 ATT-INTERNET4, US 6167 1903 3929 507 CELLCO-PART, US 11776 1900 259 214 ATLANTICBB-JOHNSTOWN, US 209 1659 4889 270 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 794 1841 16 TE-AS TE-AS, EG 34984 677 73 410 TELLCOM-AS, TR 212238 629 45 555 CDNEXT, GB 51167 568 113 251 CONTABO, DE 8376 566 53 22 Jordan Data Communications, JO 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 7492 2002 957 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1670 243 1211 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 1027 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 557 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 24835 1079 535 35 RAYA-AS, EG 29571 1021 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 596 127 172 Vodafone-, EG 36914 564 82 3 KENET-AS, KE 36903 533 242 367 MT-MPLS, MA 37069 469 1046 15 MOBINIL, EG 2018 374 318 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 13699 40940 5243 AMAZON-02, US 9808 10891 8758 99 CHINAMOBILE-CN China Mobile Communication 8151 7492 2002 957 UNINET, MX 22773 3342 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 4155 2791 212 1704 USDA-1, US 36352 2554 209 1128 AS-COLOCROSSING, US 367 2424 2899 1163 DNIC-ASBLK-00306-00371, US 56046 2080 811 188 CMNET-JIANGSU-AP China Mobile communicati 7018 2023 22875 1485 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 7492 6535 UNINET, MX 22773 3342 3176 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 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 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 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 /15:1101 /16:7627 /17:3444 /18:4215 /19:7604 /20:12485 /21:15295 /22:27329 /23:27851 /24:154849 /25:62 /26:81 /27:33 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4015 7492 UNINET, MX 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2377 13699 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1031 2554 AS-COLOCROSSING, US 19901 989 1288 BRSPD-PUBLIC, US 10620 965 1670 Telmex Colombia S.A., CO 209 964 1659 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) ---------------------------------------------- 1:20 2:451 3:813 4:5 5:800 6:149 7:5 8:668 11:171 12:975 13:399 14:114 15:304 16:247 17:4 18:890 20:187 21:4 22:188 23:2600 24:692 27:25 29:19 31:570 32:9 33:1 34:10 35:181 36:1886 37:920 38:1952 39:552 40:63 41:959 42:21 43:192 44:37 45:3545 46:988 47:92 49:19 50:350 51:387 52:1397 54:320 55:1087 56:11 57:22 58:16 59:29 60:16 61:75 62:541 63:746 64:1964 65:1086 66:1535 67:989 68:400 69:1146 70:475 71:197 72:650 74:934 75:320 76:248 77:486 78:364 79:295 80:300 81:380 82:731 83:238 84:340 85:424 86:241 87:209 88:299 89:840 90:106 91:941 92:632 93:505 94:924 95:663 96:290 97:53 98:458 99:191 100:36 101:22 102:348 103:1200 104:1663 105:225 106:3 107:1567 108:544 109:403 110:67 111:1922 112:522 113:34 114:41 115:24 116:56 117:1040 118:59 119:105 120:1295 121:43 122:67 123:78 124:61 125:25 128:484 129:413 130:680 131:915 132:554 133:211 134:453 135:112 136:601 137:506 138:830 139:425 140:708 141:471 142:1030 143:697 144:429 145:119 146:688 147:510 148:905 149:775 150:213 151:644 152:485 153:130 154:1165 155:865 156:1040 157:379 158:554 159:733 160:811 161:661 162:1010 163:421 164:712 165:525 166:797 167:648 168:1156 169:161 170:1529 171:127 172:1369 173:809 174:282 175:62 176:772 177:857 178:515 179:668 180:73 181:1764 182:25 183:974 184:451 185:3527 186:2075 187:1494 188:832 189:1820 190:4119 191:461 192:5184 193:1900 194:1249 195:924 196:680 197:1600 198:2746 199:4943 200:3633 201:3324 202:946 203:706 204:2158 205:1723 206:1576 207:1546 208:1452 209:1950 210:296 211:425 212:1039 213:774 214:940 215:37 216:2566 217:413 218:528 219:18 220:28 221:388 222:24 223:874 End of report