IPv4 R&E Routing Table Report 23:05 GMT Tue 25 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: 912516 Prefixes after maximum aggregation (per Origin AS): 346851 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 448750 Number of IPv4 prefixes with a valid ROA: 392570 Number of IPv4 prefixes with an invalid ROA: 1887 Number of IPv4 prefixes with no ROA: 518059 Total ASes present in the Internet Routing Table: 74169 Prefixes per ASN: 12.30 Origin-only ASes present in the Internet Routing Table: 63677 Origin ASes announcing only one prefix: 26176 Transit ASes present in the Internet Routing Table: 10492 Transit-only ASes present in the Internet Routing Table: 430 Paths with bogon ASNs present in the IPv4 Routing Table: 36 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: 1376 Number of instances of unregistered ASNs: 1376 Number of 32-bit ASNs allocated by the RIRs: 41717 Number of 32-bit ASNs visible in the Routing Table: 34434 Prefixes from 32-bit ASNs in the Routing Table: 169791 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: 822 Number of addresses announced to Internet: 3059604224 Equivalent to 182 /8s, 93 /16s and 219 /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: 306012 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236985 Total APNIC prefixes after maximum aggregation: 68457 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 231330 Unique aggregates announced from the APNIC address blocks: 97799 APNIC Region origin ASes present in the Internet Routing Table: 13297 APNIC Prefixes per ASN: 17.40 APNIC Region origin ASes announcing only one prefix: 3909 APNIC Region transit ASes present in the Internet Routing Table: 1783 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: 8664 Number of APNIC addresses announced to Internet: 772889344 Equivalent to 46 /8s, 17 /16s and 91 /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: 267845 Total ARIN prefixes after maximum aggregation: 121539 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 270455 Unique aggregates announced from the ARIN address blocks: 130863 ARIN Region origin ASes present in the Internet Routing Table: 19021 ARIN Prefixes per ASN: 14.22 ARIN Region origin ASes announcing only one prefix: 6956 ARIN Region transit ASes present in the Internet Routing Table: 1891 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: 4765 Number of ARIN addresses announced to Internet: 1283529472 Equivalent to 76 /8s, 129 /16s and 27 /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: 259214 Total RIPE prefixes after maximum aggregation: 121990 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 255124 Unique aggregates announced from the RIPE address blocks: 157917 RIPE Region origin ASes present in the Internet Routing Table: 28302 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12058 RIPE Region transit ASes present in the Internet Routing Table: 3987 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: 11148 Number of RIPE addresses announced to Internet: 717913088 Equivalent to 42 /8s, 202 /16s and 124 /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: 117641 Total LACNIC prefixes after maximum aggregation: 28224 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116904 Unique aggregates announced from the LACNIC address blocks: 49305 LACNIC Region origin ASes present in the Internet Routing Table: 10982 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2650 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: 8773 Number of LACNIC addresses announced to Internet: 176697088 Equivalent to 10 /8s, 136 /16s and 47 /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: 29455 Total AfriNIC prefixes after maximum aggregation: 5820 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 37881 Unique aggregates announced from the AfriNIC address blocks: 12321 AfriNIC Region origin ASes present in the Internet Routing Table: 1735 AfriNIC Prefixes per ASN: 21.83 AfriNIC Region origin ASes announcing only one prefix: 603 AfriNIC Region transit ASes present in the Internet Routing Table: 336 Average AfriNIC Region AS path length visible: 4.9 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: 107917824 Equivalent to 6 /8s, 110 /16s and 178 /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 9458 8705 37 CHINAMOBILE-CN China Mobile Communicati 7545 5729 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 3395 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2940 489 234 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 8266 10778 2932 AMAZON-02, US 11492 4545 301 593 CABLEONE, US 7155 3975 281 51 VIASAT-SP-BACKBONE, US 22773 3587 3058 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3521 1320 64 SHAW, CA 16625 3161 1579 2352 AKAMAI-AS, US 749 3071 53111 2323 DNIC-AS-00749, US 396982 2631 3590 362 GOOGLE-CLOUD-PLATFORM, US 7018 2579 24160 1578 ATT-INTERNET4, US 30036 2507 362 456 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 7235 1706 140 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4079 3399 163 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2895 2292 909 ROSTELECOM-AS, RU 9009 2666 249 1392 M247, RO 34984 2277 360 613 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 11254 3347 593 Uninet S.A. de C.V., MX 10620 3503 507 851 Telmex Colombia S.A., CO 13999 2331 358 616 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 1035 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 1577 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 1022 67 52 ORANGE-COTE-IVOIRE, CI 36935 875 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 518 54 46 WANANCHI-, KE 37342 489 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 11254 3347 593 Uninet S.A. de C.V., MX 9808 9458 8705 37 CHINAMOBILE-CN China Mobile Communicati 16509 8266 10778 2932 AMAZON-02, US 12479 7235 1706 140 UNI2-AS, ES 7545 5729 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4545 301 593 CABLEONE, US 20940 4079 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 9458 9421 CHINAMOBILE-CN China Mobile Communications Grou 12479 7235 7095 UNI2-AS, ES 16509 8266 5334 AMAZON-02, US 7545 5729 5039 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 11492 4545 3952 CABLEONE, US 7155 3975 3924 VIASAT-SP-BACKBONE, US 20940 4079 3916 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 /14:1195 /15:2083 /16:13414 /17:8155 /18:13705 /19:24797 /20:43091 /21:50861 /22:108872 /23:97176 /24:548114 /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 6290 7235 UNI2-AS, ES 8151 5189 11254 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3454 4545 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3330 3521 SHAW, CA 7155 3043 3975 VIASAT-SP-BACKBONE, US 22773 2655 3587 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2165 2507 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) ---------------------------------------------- 1:1777 2:1283 3:175 4:5 5:4499 6:128 7:6 8:1509 9:1 11:172 12:1537 13:389 14:2317 15:299 16:183 17:368 18:416 20:256 21:4 22:188 23:6247 24:2581 25:6 27:2488 29:19 31:2500 32:78 34:12 35:106 36:1944 37:4651 38:4461 39:820 40:151 41:3956 42:1207 43:2320 44:308 45:16521 46:4259 47:356 49:1732 50:1824 51:573 52:1595 54:391 55:859 56:8 57:115 58:1705 59:1099 60:992 61:2476 62:2650 63:1921 64:5674 65:2324 66:4942 67:2996 68:1372 69:4155 70:1245 71:674 72:2977 74:2608 75:1441 76:608 77:2436 78:1800 79:3175 80:2112 81:1751 82:1492 83:1278 84:1515 85:2982 86:760 87:1994 88:1167 89:3650 90:610 91:7715 92:2063 93:2624 94:3597 95:3982 96:1324 97:337 98:1154 99:746 100:73 101:1303 102:2700 103:31209 104:4633 105:488 106:933 107:2521 108:1027 109:4417 110:2078 111:3083 112:2028 113:1543 114:1641 115:2009 116:1902 117:2559 118:2361 119:2008 120:1763 121:1043 122:2577 123:2164 124:1573 125:2456 128:1319 129:1049 130:1015 131:1982 132:845 133:422 134:1898 135:304 136:879 137:944 138:2576 139:1555 140:1236 141:1461 142:1431 143:1493 144:1153 145:347 146:1926 147:1576 148:2310 149:2137 150:837 151:1152 152:1928 153:488 154:4426 155:1444 156:1771 157:1310 158:1058 159:2302 160:2541 161:1528 162:3514 163:1494 164:1607 165:1727 166:1028 167:1737 168:3836 169:938 170:4588 171:882 172:3559 173:2929 174:1070 175:1168 176:3678 177:4573 178:3581 179:2146 180:2604 181:3439 182:3329 183:1967 184:2371 185:20165 186:4778 187:3942 188:4102 189:3545 190:9167 191:1430 192:10922 193:8866 194:7304 195:5142 196:3161 197:2346 198:5867 199:6084 200:7922 201:5857 202:10336 203:10204 204:4573 205:3647 206:4250 207:3383 208:4059 209:4838 210:4166 211:2405 212:4128 213:3563 214:1088 215:59 216:6634 217:2683 218:1272 219:406 220:1767 221:970 222:711 223:2149 End of report