Routing Table Report 00:00 GMT Mon 26 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: 407732
Prefixes after maximum aggregation: 172789
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195632
Total ASes present in the Internet Routing Table: 40522
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 32933
Origin ASes announcing only one prefix: 15513
Transit ASes present in the Internet Routing Table: 5452
Transit-only ASes present in the Internet Routing Table: 141
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: 5752
Unregistered ASNs in the Routing Table: 258
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 2137
Prefixes from 32-bit ASNs in the Routing Table: 5210
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 908
Number of addresses announced to Internet: 2528266825
Equivalent to 150 /8s, 178 /16s and 74 /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: 172746
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96616
Total APNIC prefixes after maximum aggregation: 30952
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93101
Unique aggregates announced from the APNIC address blocks: 39412
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 168
Number of APNIC addresses announced to Internet: 641387776
Equivalent to 38 /8s, 58 /16s and 205 /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: 153258
Total ARIN prefixes after maximum aggregation: 78049
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 124374
Unique aggregates announced from the ARIN address blocks: 49935
ARIN Region origin ASes present in the Internet Routing Table: 14967
ARIN Prefixes per ASN: 8.31
ARIN Region origin ASes announcing only one prefix: 5695
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: 805265152
Equivalent to 47 /8s, 255 /16s and 95 /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: 103588
Total RIPE prefixes after maximum aggregation: 53328
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 94064
Unique aggregates announced from the RIPE address blocks: 57185
RIPE Region origin ASes present in the Internet Routing Table: 16370
RIPE Prefixes per ASN: 5.75
RIPE Region origin ASes announcing only one prefix: 7974
RIPE Region transit ASes present in the Internet Routing Table: 2643
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: 1453
Number of RIPE addresses announced to Internet: 502239360
Equivalent to 29 /8s, 239 /16s and 144 /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: 39800
Total LACNIC prefixes after maximum aggregation: 8140
LACNIC Deaggregation factor: 4.89
Prefixes being announced from the LACNIC address blocks: 39486
Unique aggregates announced from the LACNIC address blocks: 19733
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 25.12
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 495
Number of LACNIC addresses announced to Internet: 98605832
Equivalent to 5 /8s, 224 /16s and 155 /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: 8880
Total AfriNIC prefixes after maximum aggregation: 2118
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6956
Unique aggregates announced from the AfriNIC address blocks: 2172
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31476480
Equivalent to 1 /8s, 224 /16s and 75 /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 1924 11101 675 Korea Telecom (KIX)
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
7545 1653 303 90 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 1167 1062 11 Vietel Corporation
24560 1014 384 166 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 923 1874 267 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 3375 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 1882 680 128 AppliedTheory Corporation
20115 1635 1559 627 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1403 253 743 Mediacom Communications Corp
7018 1282 13743 835 AT&T WorldNet Services
11492 1165 212 413 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 1785 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1067 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 645 654 56 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 629 205 492 Akamai Technologies European
8551 603 360 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 1727 1099 60 Types of queries are: POCs, o
8151 1537 3000 335 Uninet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Types of queries are: POCs, o
27947 689 69 111 Telconet S.A
11172 637 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 566 239 95 COLOMBIA TELECOMUNICACIONES S
6503 565 418 66 AVANTEL, S.A.
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 842 274 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
16637 161 664 84 Johnnic e-Ventures
36923 157 20 4 Swift Networks Limited
29571 143 14 24 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 3375 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 1882 680 128 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
8402 1785 544 16 Corbina telecom
17974 1760 503 64 PT TELEKOMUNIKASI INDONESIA
28573 1727 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 1785 1769 Corbina telecom
1785 1882 1754 AppliedTheory Corporation
17974 1760 1696 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1727 1667 Types of queries are: POCs, o
7545 1653 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 /16:12331 /17:6516 /18:10861
/19:21091 /20:29892 /21:30059 /22:40587 /23:38021 /24:213581
/25:68 /26:74 /27:109 /28:279 /29:105 /30:507
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3035 3375 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1792 2958 Time Warner Telecom
8402 1762 1785 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1351 1403 Mediacom Communications Corp
11492 1128 1165 Cable One
8452 1075 1265 TEDATA
1785 1064 1882 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:534 2:766 4:18 6:3 8:393 12:1972
13:1 14:603 15:12 16:3 17:7 20:8
23:149 24:1762 27:1251 31:967 32:120 33:2
34:2 36:8 37:290 38:787 39:4 40:120
41:3022 42:130 44:3 46:1462 47:3 49:347
50:642 52:13 54:6 55:8 56:3 57:41
58:963 59:493 60:278 61:1211 62:1013 63:2013
64:4367 65:2273 66:4854 67:2048 68:1331 69:3302
70:948 71:438 72:1835 73:1 74:2763 75:504
76:332 77:964 78:988 79:513 80:1239 81:914
82:672 83:554 84:624 85:1196 86:736 87:918
88:346 89:1626 90:296 91:4644 92:521 93:1508
94:1462 95:1160 96:378 97:385 98:832 99:37
100:6 101:157 103:926 106:64 107:178 108:212
109:1561 110:761 111:902 112:441 113:564 114:635
115:782 116:921 117:724 118:920 119:1207 120:340
121:719 122:1663 123:1100 124:1368 125:1261 128:558
129:193 130:263 131:595 132:173 133:21 134:245
135:63 136:212 137:194 138:351 139:157 140:494
141:241 142:389 143:403 144:498 145:69 146:492
147:254 148:755 149:297 150:156 151:176 152:459
153:171 154:7 155:444 156:213 157:382 158:166
159:523 160:326 161:249 162:343 163:186 164:545
165:411 166:560 167:463 168:859 169:149 170:845
171:124 172:2 173:1851 174:725 175:447 176:461
177:580 178:1298 180:1172 181:73 182:764 183:276
184:447 185:1 186:2139 187:857 188:1150 189:1188
190:5579 192:6023 193:5621 194:4601 195:3690 196:1293
197:177 198:3638 199:4492 200:5773 201:1661 202:8480
203:8631 204:4356 205:2466 206:2825 207:2842 208:4079
209:3722 210:2786 211:1480 212:2034 213:1915 214:867
215:108 216:5108 217:1537 218:543 219:348 220:1237
221:552 222:331 223:327
End of report
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