Routing Table Report 00:00 GMT Wed 28 Mar, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 407393
Prefixes after maximum aggregation: 172823
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195745
Total ASes present in the Internet Routing Table: 40541
Prefixes per ASN: 10.05
Origin-only ASes present in the Internet Routing Table: 32931
Origin ASes announcing only one prefix: 15511
Transit ASes present in the Internet Routing Table: 5465
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5808
Unregistered ASNs in the Routing Table: 271
Number of 32-bit ASNs allocated by the RIRs: 2337
Number of 32-bit ASNs visible in the Routing Table: 2145
Prefixes from 32-bit ASNs in the Routing Table: 5241
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1186
Number of addresses announced to Internet: 2530191693
Equivalent to 150 /8s, 207 /16s and 169 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171979
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96722
Total APNIC prefixes after maximum aggregation: 30976
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93211
Unique aggregates announced from the APNIC address blocks: 39172
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 20.00
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 744
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 169
Number of APNIC addresses announced to Internet: 642196736
Equivalent to 38 /8s, 71 /16s and 37 /24s
Percentage of available APNIC address space announced: 81.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 153394
Total ARIN prefixes after maximum aggregation: 78048
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 124497
Unique aggregates announced from the ARIN address blocks: 49978
ARIN Region origin ASes present in the Internet Routing Table: 14968
ARIN Prefixes per ASN: 8.32
ARIN Region origin ASes announcing only one prefix: 5696
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 805284096
Equivalent to 47 /8s, 255 /16s and 169 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 102760
Total RIPE prefixes after maximum aggregation: 53339
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93203
Unique aggregates announced from the RIPE address blocks: 57180
RIPE Region origin ASes present in the Internet Routing Table: 16363
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2650
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1456
Number of RIPE addresses announced to Internet: 502396548
Equivalent to 29 /8s, 241 /16s and 246 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 40016
Total LACNIC prefixes after maximum aggregation: 8117
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 39511
Unique aggregates announced from the LACNIC address blocks: 19743
LACNIC Region origin ASes present in the Internet Routing Table: 1568
LACNIC Prefixes per ASN: 25.20
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 499
Number of LACNIC addresses announced to Internet: 98684936
Equivalent to 5 /8s, 225 /16s and 208 /24s
Percentage of available LACNIC address space announced: 65.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8854
Total AfriNIC prefixes after maximum aggregation: 2122
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6911
Unique aggregates announced from the AfriNIC address blocks: 2167
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31498752
Equivalent to 1 /8s, 224 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 46.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1925 11101 676 Korea Telecom (KIX)
17974 1788 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1653 301 89 TPG Internet Pty Ltd
4755 1573 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
24560 1018 385 167 Bharti Airtel Ltd.
18101 949 130 160 Reliance Infocom Ltd Internet
4808 927 1874 270 CNCGROUP IP network: China169
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3374 990 155 Windstream Communications Inc
6389 3370 3807 198 bellsouth.net, inc.
4323 2958 1075 379 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1883 680 128 AppliedTheory Corporation
20115 1635 1559 626 Charter Communications
22773 1550 2910 111 Cox Communications, Inc.
30036 1408 254 741 Mediacom Communications Corp
7018 1278 13742 830 AT&T WorldNet Services
11492 1183 216 365 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1789 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1067 853 198 KPNQwest Backbone AS
31148 672 37 9 FreeNet ISP
34984 666 188 174 Tellcom Iletisim Hizmetleri
12479 655 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 632 205 495 Akamai Technologies European
8551 604 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1808 329 126 TVCABLE BOGOTA
28573 1745 1105 58 Types of queries are: POCs, o
8151 1537 3000 331 Uninet S.A. de C.V.
7303 1350 826 190 Telecom Argentina Stet-France
26615 902 700 28 Types of queries are: POCs, o
27947 688 69 114 Telconet S.A
11172 637 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 568 418 66 AVANTEL, S.A.
3816 566 239 97 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1270 958 13 TEDATA
24863 844 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 924 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 Johnnic e-Ventures
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3374 990 155 Windstream Communications Inc
6389 3370 3807 198 bellsouth.net, inc.
4323 2958 1075 379 Time Warner Telecom
18566 2093 383 179 Covad Communications
4766 1925 11101 676 Korea Telecom (KIX)
1785 1883 680 128 AppliedTheory Corporation
10620 1808 329 126 TVCABLE BOGOTA
8402 1789 544 16 Corbina telecom
17974 1788 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1745 1105 58 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3370 3172 bellsouth.net, inc.
4323 2958 2579 Time Warner Telecom
18566 2093 1914 Covad Communications
8402 1789 1773 Corbina telecom
1785 1883 1755 AppliedTheory Corporation
17974 1788 1727 PT TELEKOMUNIKASI INDONESIA
28573 1745 1687 Types of queries are: POCs, o
10620 1808 1682 TVCABLE BOGOTA
7545 1653 1564 TPG Internet Pty Ltd
22773 1550 1439 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:19 /9:12 /10:28 /11:81 /12:234
/13:458 /14:837 /15:1511 /16:12340 /17:6527 /18:10866
/19:21102 /20:29914 /21:30106 /22:40651 /23:38043 /24:213046
/25:69 /26:76 /27:109 /28:280 /29:101 /30:502
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3034 3374 Windstream Communications Inc
6389 2087 3370 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1792 2958 Time Warner Telecom
8402 1766 1789 Corbina telecom
10620 1705 1808 TVCABLE BOGOTA
30036 1356 1408 Mediacom Communications Corp
11492 1146 1183 Cable One
8452 1080 1270 TEDATA
1785 1064 1883 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:760 4:18 6:3 8:393 12:1982
13:1 14:604 15:12 16:3 17:7 20:8
23:152 24:1763 27:1257 31:970 32:120 33:2
34:2 36:8 37:301 38:787 39:4 40:120
41:2990 42:131 44:3 46:1461 47:3 49:347
50:643 52:13 54:6 55:9 56:3 57:41
58:973 59:493 60:278 61:1207 62:981 63:2013
64:4366 65:2275 66:4864 67:2054 68:1330 69:3303
70:947 71:446 72:1850 73:1 74:2768 75:506
76:331 77:965 78:991 79:511 80:1216 81:906
82:674 83:555 84:525 85:1209 86:415 87:918
88:347 89:1628 90:297 91:4652 92:521 93:1395
94:1464 95:1159 96:378 97:385 98:842 99:37
100:6 101:164 103:917 106:64 107:178 108:212
109:1272 110:764 111:903 112:444 113:564 114:631
115:802 116:923 117:723 118:922 119:1209 120:340
121:720 122:1650 123:1103 124:1367 125:1264 128:558
129:194 130:262 131:596 132:173 133:21 134:245
135:63 136:212 137:194 138:351 139:157 140:494
141:241 142:389 143:415 144:500 145:69 146:489
147:254 148:756 149:296 150:157 151:176 152:459
153:171 154:7 155:447 156:213 157:382 158:171
159:524 160:325 161:249 162:343 163:188 164:547
165:408 166:561 167:464 168:859 169:149 170:845
171:124 172:4 173:1856 174:741 175:446 176:457
177:598 178:1297 180:1194 181:72 182:762 183:276
184:448 185:1 186:2146 187:865 188:1159 189:1189
190:5542 192:6026 193:5615 194:4641 195:3642 196:1288
197:177 198:3638 199:4493 200:5777 201:1853 202:8476
203:8629 204:4352 205:2470 206:2824 207:2831 208:4077
209:3724 210:2786 211:1479 212:2037 213:1915 214:874
215:108 216:5115 217:1526 218:544 219:347 220:1238
221:554 222:330 223:328
End of report
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