IPv4 R&E Routing Table Report 20:15 GMT Mon 12 May, 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: 263173 Prefixes after maximum aggregation (per Origin AS): 115909 Deaggregation factor: 2.27 Unique aggregates announced (without unneeded subnets): 136211 Number of IPv4 prefixes with a valid ROA: 118845 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 144287 Total ASes present in the Internet Routing Table: 19809 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 17139 Origin ASes announcing only one prefix: 7783 Transit ASes present in the Internet Routing Table: 2670 Transit-only ASes present in the Internet Routing Table: 705 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 307 Number of instances of unregistered ASNs: 311 Number of 32-bit ASNs allocated by the RIRs: 46405 Number of 32-bit ASNs visible in the Routing Table: 7443 Prefixes from 32-bit ASNs in the Routing Table: 27916 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 131 Number of addresses announced to Internet: 1550219741 Equivalent to 92 /8s, 102 /16s and 121 /24s Percentage of available address space announced: 41.9 Percentage of allocated address space announced: 41.9 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: 83179 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32770 Total APNIC prefixes after maximum aggregation: 7665 APNIC Deaggregation factor: 4.28 Prefixes being announced from the APNIC address blocks: 31085 Unique aggregates announced from the APNIC address blocks: 8049 APNIC Region origin ASes present in the Internet Routing Table: 1229 APNIC Prefixes per ASN: 25.29 APNIC Region origin ASes announcing only one prefix: 481 APNIC Region transit ASes present in the Internet Routing Table: 205 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 567 Number of APNIC addresses announced to Internet: 167756140 Equivalent to 9 /8s, 255 /16s and 193 /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: 125495 Total ARIN prefixes after maximum aggregation: 65258 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 122452 Unique aggregates announced from the ARIN address blocks: 65923 ARIN Region origin ASes present in the Internet Routing Table: 9341 ARIN Prefixes per ASN: 13.11 ARIN Region origin ASes announcing only one prefix: 3908 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: 2174 Number of ARIN addresses announced to Internet: 960498657 Equivalent to 57 /8s, 64 /16s and 11 /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: 49775 Total RIPE prefixes after maximum aggregation: 26996 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51597 Unique aggregates announced from the RIPE address blocks: 37604 RIPE Region origin ASes present in the Internet Routing Table: 4714 RIPE Prefixes per ASN: 10.95 RIPE Region origin ASes announcing only one prefix: 1987 RIPE Region transit ASes present in the Internet Routing Table: 712 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1941 Number of RIPE addresses announced to Internet: 284123984 Equivalent to 16 /8s, 239 /16s and 99 /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: 44214 Total LACNIC prefixes after maximum aggregation: 13407 LACNIC Deaggregation factor: 3.30 Prefixes being announced from the LACNIC address blocks: 43354 Unique aggregates announced from the LACNIC address blocks: 20023 LACNIC Region origin ASes present in the Internet Routing Table: 3437 LACNIC Prefixes per ASN: 12.61 LACNIC Region origin ASes announcing only one prefix: 1305 LACNIC Region transit ASes present in the Internet Routing Table: 685 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: 2620 Number of LACNIC addresses announced to Internet: 96404288 Equivalent to 5 /8s, 191 /16s and 3 /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: 10612 Total AfriNIC prefixes after maximum aggregation: 2378 AfriNIC Deaggregation factor: 4.46 Prefixes being announced from the AfriNIC address blocks: 14554 Unique aggregates announced from the AfriNIC address blocks: 4498 AfriNIC Region origin ASes present in the Internet Routing Table: 263 AfriNIC Prefixes per ASN: 55.34 AfriNIC Region origin ASes announcing only one prefix: 102 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 141 Number of AfriNIC addresses announced to Internet: 41385984 Equivalent to 2 /8s, 119 /16s and 128 /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 10614 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1701 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1570 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1486 192 53 CMNET-HUNAN-AP China Mobile communication 17561 863 55 407 LCS-AS-AP LARUS Limited, HK 24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 602 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 501 796 138 ALIBABA-CN-NET Alibaba US Technology Co., 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 13353 40831 4887 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2712 206 1656 USDA-1, US 36352 2532 208 1119 AS-COLOCROSSING, US 367 2423 2904 1173 DNIC-ASBLK-00306-00371, US 7018 2094 22888 1543 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1850 3732 488 CELLCO-PART, US 209 1663 4890 273 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 1234 96 1005 AKAMAI-ASN1, NL 3257 994 2077 747 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 34984 689 76 412 TELLCOM-AS, TR 8452 658 1842 17 TE-AS TE-AS, EG 212238 576 41 508 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 7163 1940 956 UNINET, MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1190 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 644 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 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 1491 389 16 LINKdotNET-AS, EG 24835 1068 556 41 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 969 100 75 ORANGE-COTE-IVOIRE, CI 36935 719 141 187 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 551 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 2018 372 318 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 13353 40831 4887 AMAZON-02, US 9808 10614 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7163 1940 956 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2712 206 1656 USDA-1, US 36352 2532 208 1119 AS-COLOCROSSING, US 367 2423 2904 1173 DNIC-ASBLK-00306-00371, US 7018 2094 22888 1543 ATT-INTERNET4, US 11830 1996 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 10614 10519 CHINAMOBILE-CN China Mobile Communications Grou 8151 7163 6207 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1996 1932 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1895 1679 ATLANTICBB-JOHNSTOWN, US 56046 1701 1515 CMNET-JIANGSU-AP China Mobile communications co 56041 1570 1492 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1491 1475 LINKdotNET-AS, EG 56047 1486 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 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 /10:29 /11:41 /12:151 /13:207 /14:570 /15:1098 /16:7578 /17:3432 /18:4208 /19:7573 /20:12489 /21:15151 /22:27765 /23:27699 /24:154937 /25:62 /26:82 /27:34 /28:13 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3837 7163 UNINET, MX 22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2325 13353 AMAZON-02, US 11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1011 2532 AS-COLOCROSSING, US 19901 973 1259 BRSPD-PUBLIC, US 209 964 1663 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1895 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:66 2:507 3:716 4:6 5:811 6:156 7:5 8:680 11:171 12:990 13:338 14:111 15:301 16:247 17:6 18:886 20:177 21:4 22:188 23:2597 24:642 27:21 29:19 31:506 32:9 33:1 34:7 35:133 36:1576 37:948 38:1903 39:553 40:62 41:955 42:213 43:193 44:34 45:3643 46:957 47:86 49:19 50:362 51:408 52:1388 54:303 55:1090 56:11 57:14 58:18 59:31 60:16 61:72 62:548 63:764 64:1993 65:1091 66:1590 67:960 68:403 69:1124 70:441 71:202 72:765 74:960 75:426 76:249 77:485 78:352 79:289 80:297 81:361 82:717 83:262 84:358 85:452 86:238 87:247 88:279 89:871 90:104 91:951 92:606 93:473 94:938 95:619 96:290 97:59 98:456 99:171 100:35 101:22 102:364 103:1265 104:1627 105:140 106:16 107:1520 108:551 109:411 110:34 111:1947 112:456 113:39 114:45 115:12 116:62 117:1045 118:72 119:131 120:1188 121:46 122:66 123:78 124:57 125:25 128:468 129:307 130:686 131:903 132:555 133:212 134:495 135:112 136:578 137:500 138:869 139:434 140:710 141:455 142:1024 143:669 144:436 145:136 146:689 147:494 148:849 149:767 150:354 151:642 152:483 153:126 154:1750 155:839 156:1506 157:388 158:548 159:686 160:826 161:667 162:953 163:362 164:715 165:768 166:783 167:630 168:1103 169:143 170:1585 171:126 172:1373 173:839 174:251 175:53 176:675 177:827 178:505 179:671 180:49 181:1740 182:28 183:893 184:453 185:3534 186:2030 187:1327 188:801 189:1681 190:4229 191:420 192:5159 193:1850 194:1216 195:951 196:702 197:1671 198:2738 199:4892 200:3571 201:3273 202:1003 203:744 204:2160 205:1853 206:1543 207:1503 208:1433 209:1939 210:292 211:431 212:967 213:841 214:987 215:42 216:2538 217:423 218:520 219:19 220:26 221:335 222:32 223:772 End of report