IPv4 R&E Routing Table Report 23:05 GMT Tue 28 Feb, 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: 907201 Prefixes after maximum aggregation (per Origin AS): 345400 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446128 Number of IPv4 prefixes with a valid ROA: 376460 Number of IPv4 prefixes with an invalid ROA: 1598 Number of IPv4 prefixes with no ROA: 529143 Total ASes present in the Internet Routing Table: 73981 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63516 Origin ASes announcing only one prefix: 26106 Transit ASes present in the Internet Routing Table: 10465 Transit-only ASes present in the Internet Routing Table: 446 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1022 Number of instances of unregistered ASNs: 1028 Number of 32-bit ASNs allocated by the RIRs: 41309 Number of 32-bit ASNs visible in the Routing Table: 34176 Prefixes from 32-bit ASNs in the Routing Table: 167144 Number of bogon 32-bit ASNs visible in the Routing Table: 19 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 539 Number of addresses announced to Internet: 3062286848 Equivalent to 182 /8s, 134 /16s and 202 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305241 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235280 Total APNIC prefixes after maximum aggregation: 68227 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 230002 Unique aggregates announced from the APNIC address blocks: 97750 APNIC Region origin ASes present in the Internet Routing Table: 13238 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3856 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8577 Number of APNIC addresses announced to Internet: 773137152 Equivalent to 46 /8s, 21 /16s and 35 /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: 266701 Total ARIN prefixes after maximum aggregation: 121347 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268740 Unique aggregates announced from the ARIN address blocks: 130246 ARIN Region origin ASes present in the Internet Routing Table: 19004 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6972 ARIN Region transit ASes present in the Internet Routing Table: 1892 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4731 Number of ARIN addresses announced to Internet: 1286322944 Equivalent to 76 /8s, 171 /16s and 187 /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: 257310 Total RIPE prefixes after maximum aggregation: 121175 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253641 Unique aggregates announced from the RIPE address blocks: 156636 RIPE Region origin ASes present in the Internet Routing Table: 28222 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12024 RIPE Region transit ASes present in the Internet Routing Table: 3976 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11037 Number of RIPE addresses announced to Internet: 718437888 Equivalent to 42 /8s, 210 /16s and 126 /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: 117555 Total LACNIC prefixes after maximum aggregation: 28202 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116797 Unique aggregates announced from the LACNIC address blocks: 48844 LACNIC Region origin ASes present in the Internet Routing Table: 10964 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2273 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8766 Number of LACNIC addresses announced to Internet: 176500736 Equivalent to 10 /8s, 133 /16s and 48 /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: 29333 Total AfriNIC prefixes after maximum aggregation: 5698 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 37482 Unique aggregates announced from the AfriNIC address blocks: 12227 AfriNIC Region origin ASes present in the Internet Routing Table: 1721 AfriNIC Prefixes per ASN: 21.78 AfriNIC Region origin ASes announcing only one prefix: 592 AfriNIC Region transit ASes present in the Internet Routing Table: 335 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: 1065 Number of AfriNIC addresses announced to Internet: 107557888 Equivalent to 6 /8s, 105 /16s and 52 /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 9456 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5805 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3679 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3547 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3372 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2798 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2305 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 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 8039 10755 2853 AMAZON-02, US 11492 4511 299 641 CABLEONE, US 7155 3958 270 43 VIASAT-SP-BACKBONE, US 22773 3643 3064 284 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3294 1651 2417 AKAMAI-AS, US 749 3032 50571 2299 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24122 1580 ATT-INTERNET4, US 30036 2539 364 400 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 7065 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4039 3399 167 AKAMAI-ASN1, NL 8551 3901 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2898 2292 911 ROSTELECOM-AS, RU 9009 2668 253 1386 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1843 948 550 TCI, IR 13188 1607 100 27 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 11204 3348 584 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2263 369 64 Instituto Costarricense de Electricidad 13999 2257 368 603 Mega Cable, S.A. de C.V., MX 28573 1340 2324 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1293 747 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1133 370 22 Telefonica del Peru S.A.A., PE 11664 1095 180 458 Techtel LMDS Comunicaciones Interactiva 26615 1026 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 24835 1542 533 30 RAYA-AS, EG 24863 1488 393 19 LINKdotNET-AS, EG 36992 1345 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1009 67 53 ORANGE-COTE-IVOIRE, CI 36935 856 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 486 32 1 MOVITEL, MZ 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 11204 3348 584 Uninet S.A. de C.V., MX 9808 9456 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8039 10755 2853 AMAZON-02, US 12479 7065 1706 146 UNI2-AS, ES 7545 5805 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4511 299 641 CABLEONE, US 20940 4039 3399 167 AKAMAI-ASN1, NL 7155 3958 270 43 VIASAT-SP-BACKBONE, US 8551 3901 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 9456 9408 CHINAMOBILE-CN China Mobile Communications Grou 12479 7065 6919 UNI2-AS, ES 16509 8039 5186 AMAZON-02, US 7545 5805 5114 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3958 3915 VIASAT-SP-BACKBONE, US 20940 4039 3872 AKAMAI-ASN1, NL 11492 4511 3870 CABLEONE, US 8551 3901 3864 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3679 3658 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., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, 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 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2073 /16:13428 /17:8188 /18:13706 /19:24795 /20:42925 /21:50966 /22:108941 /23:96789 /24:543135 /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 6122 7065 UNI2-AS, ES 8151 5209 11204 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3428 4511 CABLEONE, US 8551 3373 3901 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3035 3958 VIASAT-SP-BACKBONE, US 22773 2697 3643 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2196 2539 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1643 2:1230 3:169 4:5 5:4346 6:116 7:6 8:1519 9:1 11:172 12:1584 13:392 14:2334 15:293 16:111 17:364 18:397 20:249 21:4 22:188 23:6080 24:2483 25:4 27:2525 29:19 31:2513 32:105 34:8 35:104 36:1930 37:4606 38:4228 39:865 40:152 41:4050 42:1081 43:2307 44:305 45:16409 46:4159 47:375 49:1734 50:1823 51:386 52:1590 54:388 55:867 56:8 57:89 58:1668 59:1120 60:984 61:2461 62:2635 63:1943 64:5632 65:2317 66:4906 67:3030 68:1349 69:4128 70:1272 71:662 72:2972 74:2587 75:1457 76:599 77:2393 78:1837 79:3168 80:2072 81:1728 82:1503 83:1228 84:1518 85:3012 86:756 87:1969 88:1229 89:3610 90:610 91:7673 92:2012 93:2574 94:3511 95:3952 96:1333 97:347 98:1163 99:744 100:77 101:1296 102:2653 103:30951 104:4582 105:484 106:911 107:2542 108:925 109:4391 110:2092 111:3283 112:2040 113:1495 114:1617 115:2017 116:1887 117:2561 118:2280 119:1946 120:1742 121:1045 122:2591 123:2137 124:1546 125:2363 128:1265 129:1059 130:990 131:1997 132:824 133:412 134:1909 135:296 136:861 137:938 138:2561 139:1542 140:1186 141:1451 142:1417 143:1492 144:1198 145:354 146:1882 147:1556 148:2279 149:1922 150:872 151:1148 152:1957 153:487 154:4188 155:1431 156:1664 157:1297 158:1015 159:2262 160:2552 161:1437 162:3540 163:1488 164:1591 165:1687 166:844 167:1735 168:3798 169:923 170:4570 171:883 172:3499 173:2959 174:1035 175:1158 176:3727 177:4653 178:3619 179:2210 180:2419 181:3413 182:3391 183:1934 184:2356 185:20096 186:4665 187:3997 188:4056 189:3597 190:9103 191:1471 192:10940 193:8813 194:7225 195:5116 196:3146 197:2389 198:5898 199:6081 200:7678 201:5880 202:10279 203:10174 204:4592 205:3519 206:3783 207:3383 208:4070 209:4836 210:4189 211:2386 212:4095 213:3548 214:1098 215:55 216:6578 217:2644 218:1266 219:409 220:1763 221:971 222:670 223:2109 End of report