IPv4 R&E Routing Table Report 20:15 GMT Sat 10 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: 261775 Prefixes after maximum aggregation (per Origin AS): 114935 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 134944 Number of IPv4 prefixes with a valid ROA: 117346 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 144387 Total ASes present in the Internet Routing Table: 19643 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 17001 Origin ASes announcing only one prefix: 7732 Transit ASes present in the Internet Routing Table: 2642 Transit-only ASes present in the Internet Routing Table: 696 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: 306 Number of instances of unregistered ASNs: 310 Number of 32-bit ASNs allocated by the RIRs: 46388 Number of 32-bit ASNs visible in the Routing Table: 7348 Prefixes from 32-bit ASNs in the Routing Table: 27382 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: 133 Number of addresses announced to Internet: 1547149277 Equivalent to 92 /8s, 55 /16s and 159 /24s Percentage of available address space announced: 41.8 Percentage of allocated address space announced: 41.8 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: 82277 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32590 Total APNIC prefixes after maximum aggregation: 7593 APNIC Deaggregation factor: 4.29 Prefixes being announced from the APNIC address blocks: 31064 Unique aggregates announced from the APNIC address blocks: 7978 APNIC Region origin ASes present in the Internet Routing Table: 1219 APNIC Prefixes per ASN: 25.48 APNIC Region origin ASes announcing only one prefix: 476 APNIC Region transit ASes present in the Internet Routing Table: 199 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: 551 Number of APNIC addresses announced to Internet: 167598700 Equivalent to 9 /8s, 253 /16s and 90 /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: 125580 Total ARIN prefixes after maximum aggregation: 65234 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 122469 Unique aggregates announced from the ARIN address blocks: 65842 ARIN Region origin ASes present in the Internet Routing Table: 9339 ARIN Prefixes per ASN: 13.11 ARIN Region origin ASes announcing only one prefix: 3906 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: 2178 Number of ARIN addresses announced to Internet: 960420577 Equivalent to 57 /8s, 62 /16s and 218 /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: 48334 Total RIPE prefixes after maximum aggregation: 26140 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50124 Unique aggregates announced from the RIPE address blocks: 36504 RIPE Region origin ASes present in the Internet Routing Table: 4571 RIPE Prefixes per ASN: 10.97 RIPE Region origin ASes announcing only one prefix: 1936 RIPE Region transit ASes present in the Internet Routing Table: 689 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: 1862 Number of RIPE addresses announced to Internet: 280988240 Equivalent to 16 /8s, 191 /16s and 138 /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: 44545 Total LACNIC prefixes after maximum aggregation: 13464 LACNIC Deaggregation factor: 3.31 Prefixes being announced from the LACNIC address blocks: 43691 Unique aggregates announced from the LACNIC address blocks: 20129 LACNIC Region origin ASes present in the Internet Routing Table: 3433 LACNIC Prefixes per ASN: 12.73 LACNIC Region origin ASes announcing only one prefix: 1307 LACNIC Region transit ASes present in the Internet Routing Table: 691 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: 2615 Number of LACNIC addresses announced to Internet: 96762944 Equivalent to 5 /8s, 196 /16s and 124 /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: 10420 Total AfriNIC prefixes after maximum aggregation: 2300 AfriNIC Deaggregation factor: 4.53 Prefixes being announced from the AfriNIC address blocks: 14294 Unique aggregates announced from the AfriNIC address blocks: 4375 AfriNIC Region origin ASes present in the Internet Routing Table: 265 AfriNIC Prefixes per ASN: 53.94 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 142 Number of AfriNIC addresses announced to Internet: 41327616 Equivalent to 2 /8s, 118 /16s and 156 /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 10611 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 871 55 416 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 639 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 505 800 138 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 13320 40835 4804 AMAZON-02, US 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2710 206 1653 USDA-1, US 36352 2514 207 1118 AS-COLOCROSSING, US 367 2412 2903 1164 DNIC-ASBLK-00306-00371, US 7018 2098 22890 1547 ATT-INTERNET4, US 11776 1895 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1849 3728 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 1203 94 984 AKAMAI-ASN1, NL 3257 994 2077 747 GTT-BACKBONE GTT, US 3215 894 4818 288 France Telecom - Orange, FR 25019 813 1301 129 SAUDINETSTC-AS, SA 34984 689 76 412 TELLCOM-AS, TR 8452 661 1842 17 TE-AS TE-AS, EG 8376 570 53 22 Jordan Data Communications, JO 212238 569 41 501 CDNEXT, GB 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 7480 2026 1009 UNINET, MX 11830 1994 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 1184 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 1061 553 39 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 948 99 77 ORANGE-COTE-IVOIRE, CI 36935 720 142 185 Vodafone-, EG 36992 603 1228 124 ETISALAT-MISR, EG 36914 545 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 410 192 301 MT-MPLS, MA 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 13320 40835 4804 AMAZON-02, US 9808 10611 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7480 2026 1009 UNINET, MX 22773 3343 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 4155 2710 206 1653 USDA-1, US 36352 2514 207 1118 AS-COLOCROSSING, US 367 2412 2903 1164 DNIC-ASBLK-00306-00371, US 7018 2098 22890 1547 ATT-INTERNET4, US 11830 1994 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 10611 10516 CHINAMOBILE-CN China Mobile Communications Grou 8151 7480 6471 UNINET, MX 22773 3343 3179 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1994 1930 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 /13:206 /14:569 /15:1095 /16:7561 /17:3425 /18:4185 /19:7574 /20:12355 /21:15182 /22:27527 /23:27593 /24:154032 /25:63 /26:85 /27:36 /28:12 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3975 7480 UNINET, MX 22773 2496 3343 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2322 13320 AMAZON-02, US 11830 1695 1994 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 994 2514 AS-COLOCROSSING, US 19901 974 1252 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) ---------------------------------------------- 1:68 2:492 3:702 4:5 5:784 6:155 7:5 8:679 11:171 12:994 13:327 14:111 15:301 16:247 17:6 18:887 20:177 21:4 22:188 23:2588 24:646 27:21 29:19 31:479 32:9 33:1 34:10 35:134 36:1578 37:935 38:1893 39:553 40:62 41:915 42:213 43:196 44:33 45:3640 46:946 47:85 49:20 50:361 51:385 52:1386 54:300 55:1094 56:11 57:16 58:18 59:31 60:16 61:72 62:544 63:763 64:1993 65:1086 66:1586 67:957 68:401 69:1123 70:441 71:203 72:773 74:963 75:426 76:249 77:463 78:339 79:282 80:293 81:353 82:692 83:246 84:342 85:448 86:234 87:242 88:277 89:850 90:103 91:924 92:596 93:460 94:912 95:618 96:289 97:59 98:456 99:170 100:36 101:18 102:363 103:1232 104:1611 105:140 106:16 107:1503 108:548 109:380 110:34 111:1946 112:456 113:39 114:42 115:12 116:62 117:1045 118:62 119:130 120:1188 121:46 122:66 123:76 124:56 125:25 128:468 129:307 130:685 131:903 132:564 133:212 134:506 135:112 136:576 137:499 138:877 139:442 140:709 141:463 142:1024 143:667 144:431 145:135 146:677 147:488 148:858 149:771 150:384 151:633 152:467 153:129 154:1741 155:831 156:1413 157:382 158:545 159:685 160:813 161:669 162:946 163:356 164:712 165:761 166:781 167:630 168:1104 169:143 170:1590 171:122 172:1373 173:832 174:250 175:55 176:659 177:798 178:489 179:672 180:49 181:1740 182:30 183:892 184:452 185:3365 186:2024 187:1371 188:778 189:1733 190:4220 191:423 192:5166 193:1819 194:1210 195:932 196:695 197:1568 198:2741 199:4898 200:3592 201:3274 202:1004 203:743 204:2153 205:1931 206:1558 207:1503 208:1435 209:1935 210:308 211:432 212:941 213:833 214:985 215:42 216:2540 217:417 218:520 219:19 220:26 221:334 222:32 223:773 End of report