This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 22 Nov, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1037953 Prefixes after maximum aggregation (per Origin AS): 394072 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 503230 Number of IPv4 prefixes with a valid ROA: 601448 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 436486 Total ASes present in the Internet Routing Table: 77682 Prefixes per ASN: 13.36 Origin-only ASes present in the Internet Routing Table: 66450 Origin ASes announcing only one prefix: 27013 Transit ASes present in the Internet Routing Table: 11232 Transit-only ASes present in the Internet Routing Table: 578 Paths with bogon ASNs present in the IPv4 Routing Table: 92 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 65 Max AS path prepend of ASN ( 37447) 59 Prefixes from unregistered ASNs in the Routing Table: 1013 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 48025 Number of 32-bit ASNs visible in the Routing Table: 39382 Prefixes from 32-bit ASNs in the Routing Table: 219684 Number of bogon 32-bit ASNs visible in the Routing Table: 108 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 374 Number of addresses announced to Internet: 3104779681 Equivalent to 185 /8s, 15 /16s and 45 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 338316 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285452 Total APNIC prefixes after maximum aggregation: 81783 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 273598 Unique aggregates announced from the APNIC address blocks: 106691 APNIC Region origin ASes present in the Internet Routing Table: 14977 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 4533 APNIC Region transit ASes present in the Internet Routing Table: 2028 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10483 Number of APNIC addresses announced to Internet: 757345088 Equivalent to 45 /8s, 36 /16s and 43 /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, 131072-155961 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: 301522 Total ARIN prefixes after maximum aggregation: 134056 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 301326 Unique aggregates announced from the ARIN address blocks: 145454 ARIN Region origin ASes present in the Internet Routing Table: 19375 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7093 ARIN Region transit ASes present in the Internet Routing Table: 2003 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5407 Number of ARIN addresses announced to Internet: 1337600256 Equivalent to 79 /8s, 186 /16s and 41 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 286443 Total RIPE prefixes after maximum aggregation: 140212 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 286980 Unique aggregates announced from the RIPE address blocks: 183326 RIPE Region origin ASes present in the Internet Routing Table: 29130 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12051 RIPE Region transit ASes present in the Internet Routing Table: 4052 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12835 Number of RIPE addresses announced to Internet: 735643649 Equivalent to 43 /8s, 217 /16s and 8 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 126959 Total LACNIC prefixes after maximum aggregation: 30444 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122907 Unique aggregates announced from the LACNIC address blocks: 49543 LACNIC Region origin ASes present in the Internet Routing Table: 11308 LACNIC Prefixes per ASN: 10.87 LACNIC Region origin ASes announcing only one prefix: 2641 LACNIC Region transit ASes present in the Internet Routing Table: 2552 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9308 Number of LACNIC addresses announced to Internet: 170684256 Equivalent to 10 /8s, 44 /16s and 111 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36564 Total AfriNIC prefixes after maximum aggregation: 6899 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 52768 Unique aggregates announced from the AfriNIC address blocks: 17910 AfriNIC Region origin ASes present in the Internet Routing Table: 1984 AfriNIC Prefixes per ASN: 26.60 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1349 Number of AfriNIC addresses announced to Internet: 103294976 Equivalent to 6 /8s, 40 /16s and 40 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 13534 8889 172 CHINAMOBILE-CN China Mobile Communication 7545 6061 832 589 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4923 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4562 540 334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4409 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4403 1874 54 VNPT-AS-VN VNPT Corp, VN 7552 4011 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3705 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3387 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2944 865 502 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14163 37198 5373 AMAZON-02, US 11492 4789 317 804 CABLEONE, US 22773 4727 3096 363 ASN-CXA-ALL-CCI-22773-RDC, US 174 4339 8765 820 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3299 4860 477 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 2894 1239 2154 AKAMAI-AS, US 36352 2851 231 913 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7294 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4022 381 2279 M247, RO 20940 3906 3395 139 AKAMAI-ASN1, NL 12389 3174 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2517 179 1818 CDNEXT, GB 34984 2419 363 577 TELLCOM-AS, TR 5384 2387 585 28 EMIRATES-INTERNET Emirates Internet, AE 8452 1699 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12589 3307 576 UNINET, MX 10620 3458 463 1101 Telmex Colombia S.A., CO 13999 2500 511 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1328 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1262 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1985 630 32 RAYA-AS, EG 36992 1680 1509 397 ETISALAT-MISR, EG 24863 1264 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 36935 1086 520 31 Vodafone-, EG 37069 1086 1112 11 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 560 82 3 KENET-AS, KE 15399 546 57 55 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14163 37198 5373 AMAZON-02, US 9808 13534 8889 172 CHINAMOBILE-CN China Mobile Communication 8151 12589 3307 576 UNINET, MX 12479 7294 1711 149 UNI2-AS, ES 7545 6061 832 589 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4923 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4789 317 804 CABLEONE, US 22773 4727 3096 363 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4562 540 334 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13534 13362 CHINAMOBILE-CN China Mobile Communications Grou 8151 12589 12013 UNINET, MX 12479 7294 7145 UNI2-AS, ES 7545 6061 5472 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4923 4847 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4409 4385 FPT-AS-AP FPT Telecom Company, VN 22773 4727 4364 ASN-CXA-ALL-CCI-22773-RDC, US 45899 4403 4349 VNPT-AS-VN VNPT Corp, VN 9498 4562 4228 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 174 COGENT-174, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.137.224.0/24 Origin: 29802 HVC-AS, US 23.137.224.0/24 Transit: 6939 HURRICANE, US 23.137.225.0/24 Origin: 29802 HVC-AS, US 23.137.225.0/24 Transit: 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:94 /12:298 /13:584 /14:1207 /15:2116 /16:13826 /17:8470 /18:14210 /19:25570 /20:46538 /21:53508 /22:115004 /23:108334 /24:647352 /25:147 /26:110 /27:114 /28:39 /29:65 /30:9 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6782 12589 UNINET, MX 12479 6236 7294 UNI2-AS, ES 11492 3602 4789 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3022 4727 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2423 14163 AMAZON-02, US 30036 2314 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3458 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2517 2:1629 3:967 4:12 5:5101 6:189 7:6 8:1542 9:6 11:172 12:1235 13:551 14:2663 15:413 16:303 17:392 18:907 20:601 21:4 22:188 23:8114 24:2631 25:2 27:2848 29:19 31:3483 32:35 33:1 34:85 35:289 36:4561 37:4618 38:10450 39:1183 40:465 41:4547 42:1976 43:2962 44:409 45:19614 46:5201 47:394 49:2180 50:2052 51:597 52:1568 54:289 55:1075 56:11 57:305 58:2402 59:1458 60:1215 61:3343 62:3122 63:1743 64:5976 65:2115 66:5933 67:3247 68:1491 69:4260 70:1039 71:627 72:2954 74:2935 75:1528 76:599 77:2764 78:1914 79:1792 80:2323 81:2128 82:3780 83:1506 84:2030 85:3599 86:1203 87:2411 88:1339 89:4624 90:839 91:8459 92:2905 93:3012 94:4352 95:4586 96:1498 97:312 98:952 99:767 100:68 101:1367 102:4518 103:32726 104:5496 105:1037 106:935 107:2800 108:1197 109:4302 110:2287 111:3936 112:2783 113:1961 114:2114 115:2348 116:2198 117:3140 118:3111 119:2130 120:2405 121:1596 122:2976 123:2796 124:1754 125:2967 126:125 128:1619 129:978 130:1523 131:2290 132:783 133:462 134:1634 135:386 136:1497 137:1259 138:2907 139:1678 140:1749 141:1553 142:2283 143:2129 144:1324 145:633 146:2194 147:2158 148:2795 149:2922 150:1311 151:2678 152:2251 153:683 154:9289 155:2260 156:4088 157:2206 158:1446 159:2675 160:3793 161:1998 162:4008 163:2348 164:1967 165:2610 166:1310 167:2151 168:3925 169:789 170:5498 171:1119 172:4482 173:3422 174:913 175:1386 176:3783 177:4818 178:4349 179:2327 180:2904 181:4364 182:3844 183:2535 184:2097 185:21810 186:5520 187:4797 188:4419 189:4520 190:9735 191:1591 192:11495 193:9548 194:7999 195:5766 196:3272 197:3298 198:6114 199:6100 200:8257 201:6434 202:10939 203:10894 204:4614 205:3681 206:4466 207:3786 208:4284 209:5420 210:5124 211:2884 212:4944 213:4025 214:1040 215:52 216:7200 217:3489 218:1645 219:622 220:2203 221:1275 222:1020 223:3170 End of report