IPv4 R&E Routing Table Report 23:05 GMT Sat 18 Mar, 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: 907832 Prefixes after maximum aggregation (per Origin AS): 345691 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 446342 Number of IPv4 prefixes with a valid ROA: 379098 Number of IPv4 prefixes with an invalid ROA: 1657 Number of IPv4 prefixes with no ROA: 527077 Total ASes present in the Internet Routing Table: 74040 Prefixes per ASN: 12.26 Origin-only ASes present in the Internet Routing Table: 63586 Origin ASes announcing only one prefix: 26113 Transit ASes present in the Internet Routing Table: 10454 Transit-only ASes present in the Internet Routing Table: 444 Paths with bogon ASNs present in the IPv4 Routing Table: 32 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: 1107 Number of instances of unregistered ASNs: 1122 Number of 32-bit ASNs allocated by the RIRs: 41472 Number of 32-bit ASNs visible in the Routing Table: 34268 Prefixes from 32-bit ASNs in the Routing Table: 167847 Number of bogon 32-bit ASNs visible in the Routing Table: 43 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 510 Number of addresses announced to Internet: 3062351360 Equivalent to 182 /8s, 135 /16s and 198 /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: 305481 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234962 Total APNIC prefixes after maximum aggregation: 68225 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229640 Unique aggregates announced from the APNIC address blocks: 97614 APNIC Region origin ASes present in the Internet Routing Table: 13251 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 3875 APNIC Region transit ASes present in the Internet Routing Table: 1778 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8599 Number of APNIC addresses announced to Internet: 773052160 Equivalent to 46 /8s, 19 /16s and 215 /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: 266947 Total ARIN prefixes after maximum aggregation: 121284 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269081 Unique aggregates announced from the ARIN address blocks: 130183 ARIN Region origin ASes present in the Internet Routing Table: 19012 ARIN Prefixes per ASN: 14.15 ARIN Region origin ASes announcing only one prefix: 6973 ARIN Region transit ASes present in the Internet Routing Table: 1890 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: 4742 Number of ARIN addresses announced to Internet: 1285886464 Equivalent to 76 /8s, 165 /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: 257908 Total RIPE prefixes after maximum aggregation: 121431 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254225 Unique aggregates announced from the RIPE address blocks: 157088 RIPE Region origin ASes present in the Internet Routing Table: 28253 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12022 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11081 Number of RIPE addresses announced to Internet: 718334464 Equivalent to 42 /8s, 208 /16s and 234 /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: 117369 Total LACNIC prefixes after maximum aggregation: 28172 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116756 Unique aggregates announced from the LACNIC address blocks: 48909 LACNIC Region origin ASes present in the Internet Routing Table: 10966 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2283 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: 8775 Number of LACNIC addresses announced to Internet: 176580096 Equivalent to 10 /8s, 134 /16s and 102 /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: 29539 Total AfriNIC prefixes after maximum aggregation: 5794 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37620 Unique aggregates announced from the AfriNIC address blocks: 12144 AfriNIC Region origin ASes present in the Internet Routing Table: 1724 AfriNIC Prefixes per ASN: 21.82 AfriNIC Region origin ASes announcing only one prefix: 594 AfriNIC Region transit ASes present in the Internet Routing Table: 332 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: 1071 Number of AfriNIC addresses announced to Internet: 108113408 Equivalent to 6 /8s, 113 /16s and 174 /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 9463 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5759 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3686 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3362 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2854 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2166 440 213 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 8108 10766 2856 AMAZON-02, US 11492 4527 300 624 CABLEONE, US 7155 3966 279 45 VIASAT-SP-BACKBONE, US 22773 3645 3065 297 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3506 1320 64 SHAW, CA 16625 3160 1587 2340 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US 7018 2556 24118 1563 ATT-INTERNET4, US 30036 2507 361 485 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 7067 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4035 3399 163 AKAMAI-ASN1, NL 8551 3885 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2901 2292 912 ROSTELECOM-AS, RU 9009 2635 250 1379 M247, RO 34984 2269 359 611 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1848 949 545 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 11182 3341 589 Uninet S.A. de C.V., MX 10620 3474 504 880 Telmex Colombia S.A., CO 13999 2292 373 614 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1371 2325 248 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 460 Techtel LMDS Comunicaciones Interactiva 26615 1029 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 1569 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1016 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 467 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 11182 3341 589 Uninet S.A. de C.V., MX 9808 9463 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8108 10766 2856 AMAZON-02, US 12479 7067 1705 149 UNI2-AS, ES 7545 5759 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4527 300 624 CABLEONE, US 20940 4035 3399 163 AKAMAI-ASN1, NL 7155 3966 279 45 VIASAT-SP-BACKBONE, US 8551 3885 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 9463 9415 CHINAMOBILE-CN China Mobile Communications Grou 12479 7067 6918 UNI2-AS, ES 16509 8108 5252 AMAZON-02, US 7545 5759 5069 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3966 3921 VIASAT-SP-BACKBONE, US 11492 4527 3903 CABLEONE, US 20940 4035 3872 AKAMAI-ASN1, NL 8551 3885 3848 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3686 3665 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 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 18798 UNALLOCATED 8.40.106.0/24 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 23.136.112.0/24 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 /13:576 /14:1198 /15:2075 /16:13431 /17:8181 /18:13701 /19:24824 /20:42904 /21:51001 /22:108828 /23:96903 /24:543732 /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 6125 7067 UNI2-AS, ES 8151 5139 11182 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3435 4527 CABLEONE, US 8551 3357 3885 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3314 3506 SHAW, CA 7155 3041 3966 VIASAT-SP-BACKBONE, US 22773 2697 3645 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2164 2507 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2028 3474 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) ---------------------------------------------- 1:1667 2:1221 3:170 4:5 5:4426 6:118 7:6 8:1517 9:1 11:172 12:1577 13:395 14:2315 15:296 16:111 17:367 18:402 20:249 21:4 22:188 23:6097 24:2492 25:6 27:2499 29:19 31:2507 32:101 34:10 35:104 36:1922 37:4622 38:4336 39:807 40:150 41:4013 42:954 43:2306 44:310 45:16416 46:4227 47:371 49:1736 50:1825 51:570 52:1587 54:389 55:868 56:8 57:91 58:1677 59:1074 60:973 61:2460 62:2630 63:1933 64:5655 65:2312 66:4909 67:3020 68:1361 69:4118 70:1264 71:665 72:2973 74:2588 75:1464 76:603 77:2419 78:1840 79:3163 80:2075 81:1733 82:1502 83:1228 84:1512 85:2997 86:748 87:1958 88:1231 89:3595 90:612 91:7667 92:2018 93:2564 94:3551 95:3956 96:1328 97:331 98:1165 99:748 100:77 101:1300 102:2681 103:31029 104:4591 105:481 106:894 107:2555 108:960 109:4378 110:2061 111:3200 112:2057 113:1477 114:1621 115:2005 116:1896 117:2552 118:2280 119:1966 120:1738 121:1049 122:2587 123:2126 124:1577 125:2417 128:1248 129:1058 130:998 131:2004 132:831 133:421 134:1898 135:301 136:868 137:934 138:2560 139:1520 140:1204 141:1482 142:1429 143:1501 144:1158 145:356 146:1912 147:1559 148:2197 149:1951 150:871 151:1148 152:1959 153:488 154:4235 155:1413 156:1671 157:1276 158:1047 159:2264 160:2538 161:1471 162:3538 163:1494 164:1586 165:1704 166:847 167:1724 168:3863 169:930 170:4619 171:886 172:3504 173:2924 174:1020 175:1159 176:3664 177:4618 178:3634 179:2178 180:2435 181:3411 182:3315 183:1934 184:2346 185:20132 186:4726 187:3995 188:4059 189:3574 190:9118 191:1454 192:10946 193:8815 194:7248 195:5129 196:3162 197:2395 198:5891 199:6087 200:7730 201:5869 202:10294 203:10164 204:4615 205:3547 206:3832 207:3397 208:4073 209:4843 210:4170 211:2386 212:4094 213:3535 214:1091 215:58 216:6602 217:2659 218:1265 219:407 220:1758 221:973 222:676 223:2134 End of report