IPv4 R&E Routing Table Report 23:05 GMT Mon 24 Apr, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 912687 Prefixes after maximum aggregation (per Origin AS): 346819 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 448654 Number of IPv4 prefixes with a valid ROA: 392653 Number of IPv4 prefixes with an invalid ROA: 1891 Number of IPv4 prefixes with no ROA: 518143 Total ASes present in the Internet Routing Table: 74166 Prefixes per ASN: 12.31 Origin-only ASes present in the Internet Routing Table: 63671 Origin ASes announcing only one prefix: 26170 Transit ASes present in the Internet Routing Table: 10495 Transit-only ASes present in the Internet Routing Table: 428 Paths with bogon ASNs present in the IPv4 Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1359 Number of instances of unregistered ASNs: 1359 Number of 32-bit ASNs allocated by the RIRs: 41716 Number of 32-bit ASNs visible in the Routing Table: 34430 Prefixes from 32-bit ASNs in the Routing Table: 169685 Number of bogon 32-bit ASNs visible in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 839 Number of addresses announced to Internet: 3059894016 Equivalent to 182 /8s, 98 /16s and 71 /24s Percentage of available address space announced: 82.6 Percentage of allocated address space announced: 82.6 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: 306173 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236948 Total APNIC prefixes after maximum aggregation: 68351 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 231341 Unique aggregates announced from the APNIC address blocks: 97715 APNIC Region origin ASes present in the Internet Routing Table: 13298 APNIC Prefixes per ASN: 17.40 APNIC Region origin ASes announcing only one prefix: 3908 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8662 Number of APNIC addresses announced to Internet: 773054464 Equivalent to 46 /8s, 19 /16s and 224 /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, 131072-151865 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: 267812 Total ARIN prefixes after maximum aggregation: 121598 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270324 Unique aggregates announced from the ARIN address blocks: 130824 ARIN Region origin ASes present in the Internet Routing Table: 19024 ARIN Prefixes per ASN: 14.21 ARIN Region origin ASes announcing only one prefix: 6959 ARIN Region transit ASes present in the Internet Routing Table: 1886 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4767 Number of ARIN addresses announced to Internet: 1283658240 Equivalent to 76 /8s, 131 /16s and 18 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 259492 Total RIPE prefixes after maximum aggregation: 122029 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 255426 Unique aggregates announced from the RIPE address blocks: 157928 RIPE Region origin ASes present in the Internet Routing Table: 28303 RIPE Prefixes per ASN: 9.02 RIPE Region origin ASes announcing only one prefix: 12053 RIPE Region transit ASes present in the Internet Routing Table: 3986 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11147 Number of RIPE addresses announced to Internet: 717896960 Equivalent to 42 /8s, 202 /16s and 61 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117637 Total LACNIC prefixes after maximum aggregation: 28217 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116899 Unique aggregates announced from the LACNIC address blocks: 49305 LACNIC Region origin ASes present in the Internet Routing Table: 10978 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2643 LACNIC Region transit ASes present in the Internet Routing Table: 2299 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8770 Number of LACNIC addresses announced to Internet: 176742400 Equivalent to 10 /8s, 136 /16s and 224 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29439 Total AfriNIC prefixes after maximum aggregation: 5820 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 37858 Unique aggregates announced from the AfriNIC address blocks: 12316 AfriNIC Region origin ASes present in the Internet Routing Table: 1736 AfriNIC Prefixes per ASN: 21.81 AfriNIC Region origin ASes announcing only one prefix: 607 AfriNIC Region transit ASes present in the Internet Routing Table: 340 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1084 Number of AfriNIC addresses announced to Internet: 107879680 Equivalent to 6 /8s, 110 /16s and 29 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9461 8705 37 CHINAMOBILE-CN China Mobile Communicati 7545 5728 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3675 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3560 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3394 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2938 490 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2381 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2302 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2176 442 196 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 8240 10775 2951 AMAZON-02, US 11492 4544 301 599 CABLEONE, US 7155 3975 281 51 VIASAT-SP-BACKBONE, US 22773 3589 3058 282 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3522 1320 64 SHAW, CA 16625 3156 1576 2350 AKAMAI-AS, US 749 3071 53111 2323 DNIC-AS-00749, US 396982 2631 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2580 24160 1578 ATT-INTERNET4, US 30036 2504 361 467 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7229 1706 140 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4076 3399 163 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2893 2292 909 ROSTELECOM-AS, RU 9009 2664 249 1390 M247, RO 34984 2276 359 612 TELLCOM-AS, TR 6849 2018 307 18 UKRTELNET, UA 58224 1852 950 544 TCI, IR 13188 1607 100 18 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11251 3363 594 Uninet S.A. de C.V., MX 10620 3503 507 851 Telmex Colombia S.A., CO 13999 2329 357 615 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1333 2324 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1132 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 443 Techtel LMDS Comunicaciones Interactiva 26615 1032 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1578 393 19 LINKdotNET-AS, EG 24835 1553 533 30 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1026 67 51 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 532 54 47 WANANCHI-, KE 37342 491 32 1 MOVITEL, MZ 24757 488 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11251 3363 594 Uninet S.A. de C.V., MX 9808 9461 8705 37 CHINAMOBILE-CN China Mobile Communicati 16509 8240 10775 2951 AMAZON-02, US 12479 7229 1706 140 UNI2-AS, ES 7545 5728 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4544 301 599 CABLEONE, US 20940 4076 3399 163 AKAMAI-ASN1, NL 7155 3975 281 51 VIASAT-SP-BACKBONE, US 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9461 9424 CHINAMOBILE-CN China Mobile Communications Grou 12479 7229 7089 UNI2-AS, ES 16509 8240 5289 AMAZON-02, US 7545 5728 5038 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4544 3945 CABLEONE, US 7155 3975 3924 VIASAT-SP-BACKBONE, US 20940 4076 3913 AKAMAI-ASN1, NL 8551 3894 3857 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3675 3654 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:38 /11:103 /12:298 /13:575 /14:1194 /15:2083 /16:13418 /17:8154 /18:13702 /19:24806 /20:43068 /21:50913 /22:108862 /23:97237 /24:548197 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6284 7229 UNI2-AS, ES 8151 5185 11251 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3453 4544 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3331 3522 SHAW, CA 7155 3043 3975 VIASAT-SP-BACKBONE, US 22773 2658 3589 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2162 2504 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2057 3503 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1774 2:1286 3:175 4:5 5:4501 6:127 7:6 8:1510 9:1 11:172 12:1537 13:388 14:2316 15:299 16:183 17:368 18:416 20:256 21:4 22:188 23:6238 24:2573 25:6 27:2488 29:19 31:2509 32:77 34:12 35:106 36:1944 37:4645 38:4473 39:819 40:151 41:3961 42:1203 43:2320 44:309 45:16532 46:4258 47:356 49:1732 50:1828 51:573 52:1589 54:391 55:858 56:8 57:115 58:1704 59:1099 60:989 61:2476 62:2647 63:1922 64:5677 65:2319 66:4943 67:3001 68:1374 69:4143 70:1245 71:671 72:2939 74:2610 75:1432 76:608 77:2431 78:1852 79:3170 80:2106 81:1756 82:1483 83:1281 84:1514 85:2993 86:761 87:1989 88:1227 89:3650 90:611 91:7708 92:2062 93:2623 94:3593 95:4006 96:1328 97:338 98:1154 99:745 100:73 101:1300 102:2702 103:31253 104:4635 105:484 106:934 107:2521 108:1027 109:4417 110:2080 111:3083 112:2028 113:1542 114:1639 115:2009 116:1906 117:2560 118:2358 119:2008 120:1761 121:1043 122:2579 123:2164 124:1572 125:2456 128:1315 129:1049 130:1006 131:1985 132:845 133:422 134:1883 135:304 136:879 137:940 138:2568 139:1558 140:1236 141:1458 142:1431 143:1491 144:1153 145:346 146:1929 147:1576 148:2309 149:2104 150:875 151:1155 152:1931 153:488 154:4424 155:1438 156:1753 157:1308 158:1058 159:2305 160:2538 161:1527 162:3511 163:1508 164:1613 165:1729 166:1023 167:1742 168:3849 169:934 170:4588 171:884 172:3560 173:2937 174:1070 175:1169 176:3675 177:4575 178:3586 179:2148 180:2603 181:3434 182:3334 183:1967 184:2367 185:20170 186:4765 187:3955 188:4104 189:3544 190:9138 191:1434 192:10910 193:8876 194:7311 195:5143 196:3149 197:2363 198:5866 199:6084 200:7935 201:5850 202:10332 203:10201 204:4577 205:3650 206:4238 207:3380 208:4058 209:4837 210:4171 211:2405 212:4125 213:3567 214:1087 215:59 216:6640 217:2687 218:1272 219:406 220:1767 221:969 222:711 223:2149 End of report