Routing Table Report 00:00 GMT Tue 27 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: 407936
Prefixes after maximum aggregation: 172799
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195724
Total ASes present in the Internet Routing Table: 40517
Prefixes per ASN: 10.07
Origin-only ASes present in the Internet Routing Table: 32913
Origin ASes announcing only one prefix: 15502
Transit ASes present in the Internet Routing Table: 5466
Transit-only ASes present in the Internet Routing Table: 142
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: 5777
Unregistered ASNs in the Routing Table: 262
Number of 32-bit ASNs allocated by the RIRs: 2332
Number of 32-bit ASNs visible in the Routing Table: 2138
Prefixes from 32-bit ASNs in the Routing Table: 5226
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 926
Number of addresses announced to Internet: 2528568405
Equivalent to 150 /8s, 182 /16s and 228 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
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: 172798
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96663
Total APNIC prefixes after maximum aggregation: 30954
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93155
Unique aggregates announced from the APNIC address blocks: 39432
APNIC Region origin ASes present in the Internet Routing Table: 4660
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 742
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: 641440768
Equivalent to 38 /8s, 59 /16s and 156 /24s
Percentage of available APNIC address space announced: 81.3
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: 153291
Total ARIN prefixes after maximum aggregation: 78058
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 124406
Unique aggregates announced from the ARIN address blocks: 49939
ARIN Region origin ASes present in the Internet Routing Table: 14963
ARIN Prefixes per ASN: 8.31
ARIN Region origin ASes announcing only one prefix: 5692
ARIN Region transit ASes present in the Internet Routing Table: 1577
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: 805186048
Equivalent to 47 /8s, 254 /16s and 42 /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: 103681
Total RIPE prefixes after maximum aggregation: 53324
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 94168
Unique aggregates announced from the RIPE address blocks: 57205
RIPE Region origin ASes present in the Internet Routing Table: 16360
RIPE Prefixes per ASN: 5.76
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2656
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1456
Number of RIPE addresses announced to Internet: 502421388
Equivalent to 29 /8s, 242 /16s and 87 /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: 39788
Total LACNIC prefixes after maximum aggregation: 8123
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39472
Unique aggregates announced from the LACNIC address blocks: 19737
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 25.08
LACNIC Region origin ASes announcing only one prefix: 437
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 492
Number of LACNIC addresses announced to Internet: 98583304
Equivalent to 5 /8s, 224 /16s and 67 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8898
Total AfriNIC prefixes after maximum aggregation: 2132
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6956
Unique aggregates announced from the AfriNIC address blocks: 2205
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31514880
Equivalent to 1 /8s, 224 /16s and 225 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1924 11101 675 Korea Telecom (KIX)
17974 1773 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1654 303 91 TPG Internet Pty Ltd
4755 1573 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1169 1062 11 Vietel Corporation
24560 1015 384 166 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 926 1874 269 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 3371 3807 196 bellsouth.net, inc.
4323 2958 1075 379 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1878 680 126 AppliedTheory Corporation
20115 1634 1559 626 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1405 254 741 Mediacom Communications Corp
7018 1280 13743 833 AT&T WorldNet Services
11492 1166 212 410 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 1805 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1066 853 198 KPNQwest Backbone AS
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 Tellcom Iletisim Hizmetleri
12479 646 654 56 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 630 205 493 Akamai Technologies European
8551 604 360 81 Bezeq International
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 1807 329 130 TVCABLE BOGOTA
28573 1722 1099 60 Types of queries are: POCs, o
8151 1532 2998 334 Uninet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 900 684 29 Types of queries are: POCs, o
27947 689 69 111 Telconet S.A
11172 636 91 72 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 568 418 66 AVANTEL, S.A.
3816 567 239 96 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 1265 958 13 TEDATA
24863 843 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 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
36923 157 20 4 Swift Networks Limited
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 3371 3807 196 bellsouth.net, inc.
4323 2958 1075 379 Time Warner Telecom
18566 2093 383 179 Covad Communications
4766 1924 11101 675 Korea Telecom (KIX)
1785 1878 680 126 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
8402 1805 544 16 Corbina telecom
17974 1773 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1722 1099 60 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 3371 3175 bellsouth.net, inc.
4323 2958 2579 Time Warner Telecom
18566 2093 1914 Covad Communications
8402 1805 1789 Corbina telecom
1785 1878 1752 AppliedTheory Corporation
17974 1773 1712 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1722 1662 Types of queries are: POCs, o
7545 1654 1563 TPG Internet Pty Ltd
22773 1547 1436 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 /14:829 /15:1508 /16:12337 /17:6518 /18:10858
/19:21085 /20:29903 /21:30058 /22:40606 /23:38032 /24:213739
/25:69 /26:76 /27:110 /28:279 /29:105 /30:509
/31:20 /32:463
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3034 3374 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1792 2958 Time Warner Telecom
8402 1782 1805 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1353 1405 Mediacom Communications Corp
11492 1129 1166 Cable One
8452 1075 1265 TEDATA
1785 1062 1878 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:537 2:761 4:18 6:3 8:393 12:1974
13:1 14:605 15:12 16:3 17:7 20:8
23:152 24:1760 27:1253 31:969 32:120 33:2
34:2 36:8 37:295 38:787 39:4 40:120
41:3023 42:131 44:3 46:1461 47:3 49:347
50:643 52:13 54:6 55:10 56:3 57:41
58:965 59:493 60:278 61:1214 62:1016 63:2013
64:4370 65:2276 66:4860 67:2054 68:1331 69:3304
70:948 71:438 72:1837 73:1 74:2763 75:504
76:332 77:968 78:991 79:513 80:1237 81:913
82:672 83:555 84:624 85:1195 86:738 87:918
88:346 89:1627 90:297 91:4650 92:521 93:1537
94:1462 95:1162 96:375 97:385 98:832 99:37
100:5 101:158 103:926 106:64 107:178 108:212
109:1558 110:762 111:902 112:446 113:565 114:632
115:782 116:922 117:724 118:920 119:1209 120:340
121:719 122:1662 123:1103 124:1369 125:1261 128:555
129:195 130:263 131:595 132:173 133:21 134:245
135:63 136:211 137:194 138:351 139:157 140:494
141:241 142:389 143:404 144:500 145:69 146:491
147:254 148:754 149:297 150:157 151:176 152:459
153:171 154:7 155:444 156:213 157:382 158:166
159:524 160:326 161:248 162:343 163:188 164:547
165:411 166:558 167:463 168:859 169:149 170:845
171:124 172:2 173:1854 174:731 175:447 176:458
177:601 178:1299 180:1191 181:73 182:762 183:276
184:448 185:1 186:2146 187:864 188:1158 189:1190
190:5532 192:6025 193:5619 194:4644 195:3686 196:1293
197:177 198:3637 199:4488 200:5774 201:1660 202:8470
203:8629 204:4350 205:2471 206:2825 207:2841 208:4080
209:3722 210:2785 211:1480 212:2034 213:1917 214:873
215:108 216:5117 217:1534 218:544 219:347 220:1239
221:553 222:331 223:328
End of report
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