[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Mar 18 20:17:07 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 18 Mar, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 277919
Prefixes after maximum aggregation (per Origin AS): 122019
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 147118
Number of IPv4 prefixes with a valid ROA: 126056
Number of IPv4 prefixes with an invalid ROA: 21
Number of IPv4 prefixes with no ROA: 151842
Total ASes present in the Internet Routing Table: 21414
Prefixes per ASN: 12.98
Origin-only ASes present in the Internet Routing Table: 18406
Origin ASes announcing only one prefix: 8183
Transit ASes present in the Internet Routing Table: 3008
Transit-only ASes present in the Internet Routing Table: 750
Paths with bogon ASNs present in the IPv4 Routing Table: 9
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 300
Number of instances of unregistered ASNs: 301
Number of 32-bit ASNs allocated by the RIRs: 46144
Number of 32-bit ASNs visible in the Routing Table: 8504
Prefixes from 32-bit ASNs in the Routing Table: 33473
Number of bogon 32-bit ASNs visible in the Routing Table: 10
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 131
Number of addresses announced to Internet: 1581015613
Equivalent to 94 /8s, 60 /16s and 98 /24s
Percentage of available address space announced: 42.7
Percentage of allocated address space announced: 42.7
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: 89184
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32327
Total APNIC prefixes after maximum aggregation: 7728
APNIC Deaggregation factor: 4.18
Prefixes being announced from the APNIC address blocks: 30936
Unique aggregates announced from the APNIC address blocks: 8280
APNIC Region origin ASes present in the Internet Routing Table: 1215
APNIC Prefixes per ASN: 25.46
APNIC Region origin ASes announcing only one prefix: 477
APNIC Region transit ASes present in the Internet Routing Table: 215
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 555
Number of APNIC addresses announced to Internet: 169554796
Equivalent to 10 /8s, 27 /16s and 51 /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: 131996
Total ARIN prefixes after maximum aggregation: 68222
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 129757
Unique aggregates announced from the ARIN address blocks: 71245
ARIN Region origin ASes present in the Internet Routing Table: 9742
ARIN Prefixes per ASN: 13.32
ARIN Region origin ASes announcing only one prefix: 4035
ARIN Region transit ASes present in the Internet Routing Table: 918
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2264
Number of ARIN addresses announced to Internet: 977461185
Equivalent to 58 /8s, 66 /16s and 223 /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: 50476
Total RIPE prefixes after maximum aggregation: 27579
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51875
Unique aggregates announced from the RIPE address blocks: 38542
RIPE Region origin ASes present in the Internet Routing Table: 4734
RIPE Prefixes per ASN: 10.96
RIPE Region origin ASes announcing only one prefix: 1974
RIPE Region transit ASes present in the Internet Routing Table: 704
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1922
Number of RIPE addresses announced to Internet: 289456336
Equivalent to 17 /8s, 64 /16s and 192 /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: 52461
Total LACNIC prefixes after maximum aggregation: 16042
LACNIC Deaggregation factor: 3.27
Prefixes being announced from the LACNIC address blocks: 51116
Unique aggregates announced from the LACNIC address blocks: 24624
LACNIC Region origin ASes present in the Internet Routing Table: 4566
LACNIC Prefixes per ASN: 11.19
LACNIC Region origin ASes announcing only one prefix: 1583
LACNIC Region transit ASes present in the Internet Routing Table: 948
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 35
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3618
Number of LACNIC addresses announced to Internet: 101153600
Equivalent to 6 /8s, 7 /16s and 123 /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: 10359
Total AfriNIC prefixes after maximum aggregation: 2229
AfriNIC Deaggregation factor: 4.65
Prefixes being announced from the AfriNIC address blocks: 14104
Unique aggregates announced from the AfriNIC address blocks: 4305
AfriNIC Region origin ASes present in the Internet Routing Table: 273
AfriNIC Prefixes per ASN: 51.66
AfriNIC Region origin ASes announcing only one prefix: 114
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 145
Number of AfriNIC addresses announced to Internet: 43334400
Equivalent to 2 /8s, 149 /16s and 59 /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 10136 8753 87 CHINAMOBILE-CN China Mobile Communication
56046 1573 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1494 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 640 2170 465 SINET-AS Research Organization of Informa
17561 553 35 222 LCS-AS-AP LARUS Limited, HK
24445 511 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 510 840 140 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12928 39642 3955 AMAZON-02, US
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2503 185 1526 USDA-1, US
367 2417 2901 1174 DNIC-ASBLK-00306-00371, US
36352 2289 192 1045 AS-COLOCROSSING, US
7018 2242 22911 1599 ATT-INTERNET4, US
11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1804 3547 466 CELLCO-PART, US
209 1670 4890 278 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1352 105 1065 AKAMAI-ASN1, NL
9009 966 78 716 M247, RO
3257 928 2075 750 GTT-BACKBONE GTT, US
3215 927 4886 285 France Telecom - Orange, FR
34984 914 89 507 TELLCOM-AS, TR
25019 699 1290 134 SAUDINETSTC-AS, SA
8452 602 1842 17 TE-AS TE-AS, EG
212238 572 41 505 CDNEXT, GB
8376 570 53 22 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7048 1961 946 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1736 256 1228 Telmex Colombia S.A., CO
3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1194 371 22 Telefonica del Peru S.A.A., PE
26615 1012 2503 53 TIM SA, BR
18881 873 1127 31 TELEFONICA BRASIL S.A, BR
28006 643 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 633 90 53 ENTEL CHILE S.A., CL
26599 541 2876 72 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1456 389 16 LINKdotNET-AS, EG
29571 1092 102 93 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 862 509 44 RAYA-AS, EG
36935 680 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 548 82 3 KENET-AS, KE
37069 459 1030 15 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 374 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12928 39642 3955 AMAZON-02, US
9808 10136 8753 87 CHINAMOBILE-CN China Mobile Communication
8151 7048 1961 946 UNINET, MX
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
4155 2503 185 1526 USDA-1, US
367 2417 2901 1174 DNIC-ASBLK-00306-00371, US
36352 2289 192 1045 AS-COLOCROSSING, US
7018 2242 22911 1599 ATT-INTERNET4, US
11830 1993 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10136 10049 CHINAMOBILE-CN China Mobile Communications Grou
8151 7048 6102 UNINET, MX
22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1877 1660 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1494 1441 CMNET-HUNAN-AP China Mobile communications corp
24863 1456 1440 LINKdotNET-AS, EG
56046 1573 1394 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.136.28.0/24 Origin: 1015 SERVERSTARTERHOST, US
23.136.28.0/24 Transit: 30456 COSMIC-GLOBAL, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:43 /12:151
/13:223 /14:584 /15:1107 /16:7682 /17:3433 /18:4397
/19:7970 /20:13071 /21:15986 /22:29237 /23:29187 /24:164578
/25:60 /26:75 /27:36 /28:16 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3704 7048 UNINET, MX
22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2338 12928 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 981 1736 Telmex Colombia S.A., CO
209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US
19901 933 1170 BRSPD-PUBLIC, US
36352 906 2289 AS-COLOCROSSING, US
11776 881 1877 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:480 3:590 4:5 5:836 6:159
7:6 8:658 11:171 12:1008 13:288 14:143
15:305 16:241 17:7 18:889 20:247 21:4
22:188 23:2734 24:973 27:24 29:19 31:462
32:21 34:10 35:131 36:1228 37:1049 38:2424
39:543 40:54 41:948 42:218 43:205 44:35
45:4454 46:972 47:89 49:55 50:365 51:383
52:1393 54:277 55:1069 56:9 57:21 58:45
59:28 60:16 61:66 62:543 63:796 64:1948
65:1105 66:1733 67:1015 68:467 69:1353 70:450
71:218 72:848 74:1167 75:508 76:253 77:419
78:354 79:337 80:295 81:342 82:698 83:248
84:433 85:561 86:255 87:256 88:288 89:849
90:103 91:1024 92:728 93:500 94:869 95:631
96:285 97:67 98:478 99:161 100:38 101:31
102:335 103:1281 104:1566 105:139 106:62 107:1511
108:548 109:388 110:91 111:1926 112:462 113:40
114:65 115:20 116:54 117:1043 118:174 119:156
120:1168 121:44 122:110 123:147 124:57 125:24
126:1 128:508 129:301 130:675 131:973 132:563
133:213 134:531 135:123 136:567 137:515 138:1094
139:441 140:725 141:445 142:1040 143:740 144:433
145:77 146:742 147:544 148:870 149:757 150:378
151:728 152:538 153:128 154:1787 155:818 156:1436
157:391 158:526 159:674 160:845 161:773 162:1095
163:366 164:733 165:848 166:731 167:685 168:1590
169:152 170:1765 171:124 172:1474 173:859 174:262
175:69 176:717 177:1240 178:515 179:827 180:83
181:1931 182:46 183:880 184:545 185:3587 186:2521
187:1436 188:776 189:1774 190:5176 191:526 192:5269
193:1826 194:1266 195:957 196:820 197:1531 198:2829
199:5004 200:4138 201:3424 202:996 203:716 204:2254
205:2045 206:1732 207:1624 208:1545 209:2053 210:310
211:426 212:990 213:838 214:1011 215:37 216:2912
217:469 218:525 219:20 220:25 221:301 222:32
223:745
End of report
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