IPv4 R&E Routing Table Report 23:05 GMT Sat 04 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: 907220 Prefixes after maximum aggregation (per Origin AS): 345151 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 445944 Number of IPv4 prefixes with a valid ROA: 376822 Number of IPv4 prefixes with an invalid ROA: 1639 Number of IPv4 prefixes with no ROA: 528759 Total ASes present in the Internet Routing Table: 73957 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63512 Origin ASes announcing only one prefix: 26092 Transit ASes present in the Internet Routing Table: 10445 Transit-only ASes present in the Internet Routing Table: 442 Paths with bogon ASNs present in the IPv4 Routing Table: 30 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1045 Number of instances of unregistered ASNs: 1061 Number of 32-bit ASNs allocated by the RIRs: 41353 Number of 32-bit ASNs visible in the Routing Table: 34172 Prefixes from 32-bit ASNs in the Routing Table: 166983 Number of bogon 32-bit ASNs visible in the Routing Table: 39 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 526 Number of addresses announced to Internet: 3061910528 Equivalent to 182 /8s, 129 /16s and 12 /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: 305038 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235284 Total APNIC prefixes after maximum aggregation: 68197 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 229991 Unique aggregates announced from the APNIC address blocks: 97770 APNIC Region origin ASes present in the Internet Routing Table: 13233 APNIC Prefixes per ASN: 17.38 APNIC Region origin ASes announcing only one prefix: 3850 APNIC Region transit ASes present in the Internet Routing Table: 1783 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: 8573 Number of APNIC addresses announced to Internet: 773092608 Equivalent to 46 /8s, 20 /16s and 117 /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: 266840 Total ARIN prefixes after maximum aggregation: 121187 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268902 Unique aggregates announced from the ARIN address blocks: 130186 ARIN Region origin ASes present in the Internet Routing Table: 19002 ARIN Prefixes per ASN: 14.15 ARIN Region origin ASes announcing only one prefix: 6976 ARIN Region transit ASes present in the Internet Routing Table: 1888 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: 4730 Number of ARIN addresses announced to Internet: 1286107136 Equivalent to 76 /8s, 168 /16s and 112 /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: 257396 Total RIPE prefixes after maximum aggregation: 121135 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253662 Unique aggregates announced from the RIPE address blocks: 156506 RIPE Region origin ASes present in the Internet Routing Table: 28207 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12001 RIPE Region transit ASes present in the Internet Routing Table: 3965 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: 11032 Number of RIPE addresses announced to Internet: 718392064 Equivalent to 42 /8s, 209 /16s and 203 /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: 117301 Total LACNIC prefixes after maximum aggregation: 28163 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116625 Unique aggregates announced from the LACNIC address blocks: 48848 LACNIC Region origin ASes present in the Internet Routing Table: 10972 LACNIC Prefixes per ASN: 10.63 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2274 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: 8775 Number of LACNIC addresses announced to Internet: 176456192 Equivalent to 10 /8s, 132 /16s and 130 /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: 29354 Total AfriNIC prefixes after maximum aggregation: 5698 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 37514 Unique aggregates announced from the AfriNIC address blocks: 12217 AfriNIC Region origin ASes present in the Internet Routing Table: 1714 AfriNIC Prefixes per ASN: 21.89 AfriNIC Region origin ASes announcing only one prefix: 591 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: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1062 Number of AfriNIC addresses announced to Internet: 107536384 Equivalent to 6 /8s, 104 /16s and 224 /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 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5798 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3681 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3371 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2803 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2360 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2172 440 217 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 8082 10761 2861 AMAZON-02, US 11492 4522 300 620 CABLEONE, US 7155 3958 270 43 VIASAT-SP-BACKBONE, US 22773 3647 3064 288 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3295 1653 2426 AKAMAI-AS, US 749 3039 50554 2306 DNIC-AS-00749, US 396982 2620 3586 356 GOOGLE-CLOUD-PLATFORM, US 7018 2570 24120 1577 ATT-INTERNET4, US 30036 2538 364 403 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 7064 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4042 3399 163 AKAMAI-ASN1, NL 8551 3899 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2640 251 1381 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 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 11229 3349 586 Uninet S.A. de C.V., MX 10620 3466 504 876 Telmex Colombia S.A., CO 11830 2264 369 64 Instituto Costarricense de Electricidad 13999 2263 367 599 Mega Cable, S.A. de C.V., MX 28573 1340 2325 254 Claro NXT Telecomunicacoes Ltda, BR 3816 1299 759 160 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1281 339 509 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1096 180 459 Techtel LMDS Comunicaciones Interactiva 26615 1027 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 1551 393 19 LINKdotNET-AS, EG 24835 1528 533 30 RAYA-AS, EG 36992 1345 1517 276 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1010 67 53 ORANGE-COTE-IVOIRE, CI 36935 854 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 528 54 46 WANANCHI-, KE 24757 493 73 5 EthioNet-AS, ET 37342 493 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 11229 3349 586 Uninet S.A. de C.V., MX 9808 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8082 10761 2861 AMAZON-02, US 12479 7064 1706 146 UNI2-AS, ES 7545 5798 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4522 300 620 CABLEONE, US 20940 4042 3399 163 AKAMAI-ASN1, NL 7155 3958 270 43 VIASAT-SP-BACKBONE, US 8551 3899 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 9452 9404 CHINAMOBILE-CN China Mobile Communications Grou 12479 7064 6918 UNI2-AS, ES 16509 8082 5221 AMAZON-02, US 7545 5798 5107 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3958 3915 VIASAT-SP-BACKBONE, US 11492 4522 3902 CABLEONE, US 20940 4042 3879 AKAMAI-ASN1, NL 8551 3899 3862 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3681 3660 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, 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 /16:13425 /17:8187 /18:13704 /19:24788 /20:42942 /21:50983 /22:108999 /23:96893 /24:542971 /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 6121 7064 UNI2-AS, ES 8151 5230 11229 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3437 4522 CABLEONE, US 8551 3371 3899 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3313 3505 SHAW, CA 7155 3035 3958 VIASAT-SP-BACKBONE, US 22773 2697 3647 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2195 2538 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2020 3466 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) ---------------------------------------------- 1:1653 2:1231 3:168 4:5 5:4337 6:117 7:6 8:1518 9:1 11:172 12:1583 13:394 14:2331 15:293 16:111 17:367 18:399 20:249 21:4 22:188 23:6088 24:2475 25:4 27:2525 29:19 31:2508 32:107 34:8 35:104 36:1928 37:4604 38:4277 39:865 40:152 41:4036 42:1081 43:2305 44:306 45:16339 46:4152 47:373 49:1730 50:1820 51:386 52:1589 54:388 55:864 56:8 57:91 58:1670 59:1114 60:981 61:2456 62:2633 63:1939 64:5632 65:2319 66:4903 67:3030 68:1350 69:4133 70:1268 71:664 72:2974 74:2588 75:1457 76:601 77:2406 78:1837 79:3171 80:2069 81:1726 82:1505 83:1232 84:1513 85:3007 86:754 87:1955 88:1237 89:3605 90:610 91:7658 92:2015 93:2576 94:3506 95:3951 96:1329 97:331 98:1165 99:746 100:77 101:1293 102:2656 103:30978 104:4570 105:483 106:900 107:2541 108:928 109:4380 110:2087 111:3268 112:2038 113:1493 114:1619 115:2017 116:1893 117:2569 118:2277 119:1950 120:1741 121:1043 122:2581 123:2138 124:1544 125:2366 128:1271 129:1057 130:985 131:1990 132:821 133:421 134:1903 135:299 136:861 137:938 138:2556 139:1545 140:1194 141:1467 142:1418 143:1486 144:1207 145:357 146:1889 147:1557 148:2283 149:1923 150:918 151:1146 152:1957 153:487 154:4209 155:1430 156:1669 157:1299 158:1014 159:2267 160:2563 161:1442 162:3548 163:1486 164:1582 165:1691 166:848 167:1738 168:3794 169:921 170:4554 171:884 172:3507 173:2954 174:1012 175:1159 176:3723 177:4647 178:3614 179:2168 180:2419 181:3404 182:3391 183:1938 184:2349 185:20075 186:4675 187:3958 188:4111 189:3586 190:9092 191:1465 192:10937 193:8804 194:7228 195:5109 196:3147 197:2393 198:5893 199:6084 200:7678 201:5867 202:10278 203:10141 204:4591 205:3528 206:3786 207:3388 208:4061 209:4838 210:4188 211:2385 212:4084 213:3551 214:1094 215:55 216:6591 217:2649 218:1265 219:409 220:1763 221:971 222:670 223:2118 End of report