IPv4 R&E Routing Table Report 20:15 GMT Tue 18 Mar, 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: 277919 Prefixes after maximum aggregation (per Origin AS): 122019 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 147118 Number of IPv4 prefixes with a valid ROA: 126056 Number of IPv4 prefixes with an invalid ROA: 21 Number of IPv4 prefixes with no ROA: 151842 Total ASes present in the Internet Routing Table: 21414 Prefixes per ASN: 12.98 Origin-only ASes present in the Internet Routing Table: 18406 Origin ASes announcing only one prefix: 8183 Transit ASes present in the Internet Routing Table: 3008 Transit-only ASes present in the Internet Routing Table: 750 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: 300 Number of instances of unregistered ASNs: 301 Number of 32-bit ASNs allocated by the RIRs: 46144 Number of 32-bit ASNs visible in the Routing Table: 8504 Prefixes from 32-bit ASNs in the Routing Table: 33473 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: 1581015613 Equivalent to 94 /8s, 60 /16s and 98 /24s Percentage of available address space announced: 42.7 Percentage of allocated address space announced: 42.7 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: 89184 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32327 Total APNIC prefixes after maximum aggregation: 7728 APNIC Deaggregation factor: 4.18 Prefixes being announced from the APNIC address blocks: 30936 Unique aggregates announced from the APNIC address blocks: 8280 APNIC Region origin ASes present in the Internet Routing Table: 1215 APNIC Prefixes per ASN: 25.46 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 215 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: 555 Number of APNIC addresses announced to Internet: 169554796 Equivalent to 10 /8s, 27 /16s and 51 /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: 131996 Total ARIN prefixes after maximum aggregation: 68222 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 129757 Unique aggregates announced from the ARIN address blocks: 71245 ARIN Region origin ASes present in the Internet Routing Table: 9742 ARIN Prefixes per ASN: 13.32 ARIN Region origin ASes announcing only one prefix: 4035 ARIN Region transit ASes present in the Internet Routing Table: 918 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: 2264 Number of ARIN addresses announced to Internet: 977461185 Equivalent to 58 /8s, 66 /16s and 223 /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: 50476 Total RIPE prefixes after maximum aggregation: 27579 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51875 Unique aggregates announced from the RIPE address blocks: 38542 RIPE Region origin ASes present in the Internet Routing Table: 4734 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1974 RIPE Region transit ASes present in the Internet Routing Table: 704 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1922 Number of RIPE addresses announced to Internet: 289456336 Equivalent to 17 /8s, 64 /16s and 192 /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: 52461 Total LACNIC prefixes after maximum aggregation: 16042 LACNIC Deaggregation factor: 3.27 Prefixes being announced from the LACNIC address blocks: 51116 Unique aggregates announced from the LACNIC address blocks: 24624 LACNIC Region origin ASes present in the Internet Routing Table: 4566 LACNIC Prefixes per ASN: 11.19 LACNIC Region origin ASes announcing only one prefix: 1583 LACNIC Region transit ASes present in the Internet Routing Table: 948 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3618 Number of LACNIC addresses announced to Internet: 101153600 Equivalent to 6 /8s, 7 /16s and 123 /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: 10359 Total AfriNIC prefixes after maximum aggregation: 2229 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 14104 Unique aggregates announced from the AfriNIC address blocks: 4305 AfriNIC Region origin ASes present in the Internet Routing Table: 273 AfriNIC Prefixes per ASN: 51.66 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 145 Number of AfriNIC addresses announced to Internet: 43334400 Equivalent to 2 /8s, 149 /16s and 59 /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 10136 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1573 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1494 192 53 CMNET-HUNAN-AP China Mobile communication 24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 640 2170 465 SINET-AS Research Organization of Informa 17561 553 35 222 LCS-AS-AP LARUS Limited, HK 24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 510 840 140 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 12928 39642 3955 AMAZON-02, US 22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2503 185 1526 USDA-1, US 367 2417 2901 1174 DNIC-ASBLK-00306-00371, US 36352 2289 192 1045 AS-COLOCROSSING, US 7018 2242 22911 1599 ATT-INTERNET4, US 11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1804 3547 466 CELLCO-PART, US 209 1670 4890 278 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 1352 105 1065 AKAMAI-ASN1, NL 9009 966 78 716 M247, RO 3257 928 2075 750 GTT-BACKBONE GTT, US 3215 927 4886 285 France Telecom - Orange, FR 34984 914 89 507 TELLCOM-AS, TR 25019 699 1290 134 SAUDINETSTC-AS, SA 8452 602 1842 17 TE-AS TE-AS, EG 212238 572 41 505 CDNEXT, GB 8376 570 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 7048 1961 946 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1736 256 1228 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2503 53 TIM SA, BR 18881 873 1127 31 TELEFONICA BRASIL S.A, BR 28006 643 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 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 1456 389 16 LINKdotNET-AS, EG 29571 1092 102 93 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 862 509 44 RAYA-AS, EG 36935 680 520 41 Vodafone-, EG 36992 604 1229 126 ETISALAT-MISR, EG 36914 548 82 3 KENET-AS, KE 37069 459 1030 15 MOBINIL, EG 36903 417 195 306 MT-MPLS, MA 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 12928 39642 3955 AMAZON-02, US 9808 10136 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 7048 1961 946 UNINET, MX 22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2503 185 1526 USDA-1, US 367 2417 2901 1174 DNIC-ASBLK-00306-00371, US 36352 2289 192 1045 AS-COLOCROSSING, US 7018 2242 22911 1599 ATT-INTERNET4, US 11830 1993 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 10136 10049 CHINAMOBILE-CN China Mobile Communications Grou 8151 7048 6102 UNINET, MX 22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1877 1660 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1494 1441 CMNET-HUNAN-AP China Mobile communications corp 24863 1456 1440 LINKdotNET-AS, EG 56046 1573 1394 CMNET-JIANGSU-AP China Mobile communications co 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 53966 UNALLOCATED 8.39.98.0/24 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 23.136.28.0/24 Origin: 1015 SERVERSTARTERHOST, US 23.136.28.0/24 Transit: 30456 COSMIC-GLOBAL, 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA 23.158.216.0/24 Transit: 22427 GNET-AS, US 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 /11:43 /12:151 /13:223 /14:584 /15:1107 /16:7682 /17:3433 /18:4397 /19:7970 /20:13071 /21:15986 /22:29237 /23:29187 /24:164578 /25:60 /26:75 /27:36 /28:16 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3704 7048 UNINET, MX 22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2338 12928 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 981 1736 Telmex Colombia S.A., CO 209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US 19901 933 1170 BRSPD-PUBLIC, US 36352 906 2289 AS-COLOCROSSING, US 11776 881 1877 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:65 2:480 3:590 4:5 5:836 6:159 7:6 8:658 11:171 12:1008 13:288 14:143 15:305 16:241 17:7 18:889 20:247 21:4 22:188 23:2734 24:973 27:24 29:19 31:462 32:21 34:10 35:131 36:1228 37:1049 38:2424 39:543 40:54 41:948 42:218 43:205 44:35 45:4454 46:972 47:89 49:55 50:365 51:383 52:1393 54:277 55:1069 56:9 57:21 58:45 59:28 60:16 61:66 62:543 63:796 64:1948 65:1105 66:1733 67:1015 68:467 69:1353 70:450 71:218 72:848 74:1167 75:508 76:253 77:419 78:354 79:337 80:295 81:342 82:698 83:248 84:433 85:561 86:255 87:256 88:288 89:849 90:103 91:1024 92:728 93:500 94:869 95:631 96:285 97:67 98:478 99:161 100:38 101:31 102:335 103:1281 104:1566 105:139 106:62 107:1511 108:548 109:388 110:91 111:1926 112:462 113:40 114:65 115:20 116:54 117:1043 118:174 119:156 120:1168 121:44 122:110 123:147 124:57 125:24 126:1 128:508 129:301 130:675 131:973 132:563 133:213 134:531 135:123 136:567 137:515 138:1094 139:441 140:725 141:445 142:1040 143:740 144:433 145:77 146:742 147:544 148:870 149:757 150:378 151:728 152:538 153:128 154:1787 155:818 156:1436 157:391 158:526 159:674 160:845 161:773 162:1095 163:366 164:733 165:848 166:731 167:685 168:1590 169:152 170:1765 171:124 172:1474 173:859 174:262 175:69 176:717 177:1240 178:515 179:827 180:83 181:1931 182:46 183:880 184:545 185:3587 186:2521 187:1436 188:776 189:1774 190:5176 191:526 192:5269 193:1826 194:1266 195:957 196:820 197:1531 198:2829 199:5004 200:4138 201:3424 202:996 203:716 204:2254 205:2045 206:1732 207:1624 208:1545 209:2053 210:310 211:426 212:990 213:838 214:1011 215:37 216:2912 217:469 218:525 219:20 220:25 221:301 222:32 223:745 End of report