Routing Table Report 00:00 GMT Thu 22 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: 405839
Prefixes after maximum aggregation: 172512
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195221
Total ASes present in the Internet Routing Table: 40497
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32921
Origin ASes announcing only one prefix: 15538
Transit ASes present in the Internet Routing Table: 5451
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5694
Unregistered ASNs in the Routing Table: 242
Number of 32-bit ASNs allocated by the RIRs: 2325
Number of 32-bit ASNs visible in the Routing Table: 2125
Prefixes from 32-bit ASNs in the Routing Table: 5167
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 837
Number of addresses announced to Internet: 2528453077
Equivalent to 150 /8s, 181 /16s and 33 /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: 171134
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96460
Total APNIC prefixes after maximum aggregation: 30912
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92962
Unique aggregates announced from the APNIC address blocks: 39366
APNIC Region origin ASes present in the Internet Routing Table: 4667
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 737
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 641126144
Equivalent to 38 /8s, 54 /16s and 207 /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: 151720
Total ARIN prefixes after maximum aggregation: 77960
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123010
Unique aggregates announced from the ARIN address blocks: 49884
ARIN Region origin ASes present in the Internet Routing Table: 14969
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5691
ARIN Region transit ASes present in the Internet Routing Table: 1577
Average ARIN Region AS path length visible: 4.1
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: 806722048
Equivalent to 48 /8s, 21 /16s and 154 /24s
Percentage of available ARIN address space announced: 64.1
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: 103504
Total RIPE prefixes after maximum aggregation: 53249
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93997
Unique aggregates announced from the RIPE address blocks: 57125
RIPE Region origin ASes present in the Internet Routing Table: 16370
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2652
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1444
Number of RIPE addresses announced to Internet: 502392716
Equivalent to 29 /8s, 241 /16s and 231 /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: 39665
Total LACNIC prefixes after maximum aggregation: 8090
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39329
Unique aggregates announced from the LACNIC address blocks: 19606
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 25.02
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 290
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: 493
Number of LACNIC addresses announced to Internet: 98556680
Equivalent to 5 /8s, 223 /16s and 219 /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: 8955
Total AfriNIC prefixes after maximum aggregation: 2129
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 7032
Unique aggregates announced from the AfriNIC address blocks: 2203
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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 1932 11102 681 Korea Telecom (KIX)
17974 1747 500 61 PT TELEKOMUNIKASI INDONESIA
7545 1652 303 89 TPG Internet Pty Ltd
4755 1573 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1242 96 543 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1165 1062 11 Vietel Corporation
24560 1015 384 166 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 922 1875 266 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
6389 3375 3807 198 bellsouth.net, inc.
7029 3375 1006 155 Windstream Communications Inc
18566 2093 383 179 Covad Communications
1785 1879 680 127 AppliedTheory Corporation
20115 1634 1558 629 Charter Communications
4323 1574 1073 371 Time Warner Telecom
22773 1544 2910 111 Cox Communications, Inc.
30036 1400 252 745 Mediacom Communications Corp
7018 1278 9648 836 AT&T WorldNet Services
11492 1162 212 423 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 1760 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2247 55 LDCOM NETWORKS
286 1069 854 202 KPNQwest Backbone AS
34984 664 188 174 Tellcom Iletisim Hizmetleri
31148 661 37 9 FreeNet ISP
6830 642 1943 413 UPC Distribution Services
12479 638 651 55 Uni2 Autonomous System
20940 624 204 491 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 1725 1099 60 Types of queries are: POCs, o
8151 1518 3000 331 Uninet S.A. de C.V.
7303 1350 825 189 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
6503 567 418 66 AVANTEL, S.A.
3816 559 239 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 1258 958 13 TEDATA
24863 841 274 35 LINKdotNET AS number
6713 489 649 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
15399 190 29 12 Wananchi Online Limited
24835 177 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
16637 155 664 84 Johnnic e-Ventures
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
6389 3375 3807 198 bellsouth.net, inc.
7029 3375 1006 155 Windstream Communications Inc
18566 2093 383 179 Covad Communications
4766 1932 11102 681 Korea Telecom (KIX)
1785 1879 680 127 AppliedTheory Corporation
10620 1807 329 130 TVCABLE BOGOTA
8402 1760 544 16 Corbina telecom
17974 1747 500 61 PT TELEKOMUNIKASI INDONESIA
28573 1725 1099 60 Types of queries are: POCs, o
7545 1652 303 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3375 3220 Windstream Communications Inc
18566 2093 1914 Covad Communications
1785 1879 1752 AppliedTheory Corporation
8402 1760 1744 Corbina telecom
17974 1747 1686 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1725 1665 Types of queries are: POCs, o
7545 1652 1563 TPG Internet Pty Ltd
22773 1544 1433 Cox Communications, Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
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 4323 Time Warner Telecom
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 7018 AT&T WorldNet Servic
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 /12:235
/13:458 /14:827 /15:1508 /16:12333 /17:6528 /18:10854
/19:21081 /20:29827 /21:30018 /22:40516 /23:37905 /24:211985
/25:69 /26:75 /27:110 /28:276 /29:105 /30:508
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3035 3375 Windstream Communications Inc
6389 2090 3375 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1737 1760 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1348 1400 Mediacom Communications Corp
11492 1125 1162 Cable One
8452 1068 1258 TEDATA
1785 1062 1879 AppliedTheory Corporation
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:761 4:18 6:3 8:396 12:1978
13:1 14:612 15:12 16:3 17:7 20:8
23:144 24:1761 27:1246 31:961 32:124 33:2
34:2 36:8 37:294 38:785 39:4 40:122
41:3114 42:129 44:3 46:1439 47:3 49:347
50:518 52:13 54:6 55:10 56:3 57:46
58:962 59:494 60:278 61:1213 62:995 63:2012
64:4210 65:2277 66:4528 67:2045 68:1331 69:3297
70:945 71:438 72:1834 73:1 74:2637 75:504
76:332 77:967 78:986 79:512 80:1251 81:911
82:662 83:557 84:631 85:1199 86:740 87:922
88:351 89:1622 90:294 91:4636 92:522 93:1486
94:1456 95:1162 96:378 97:316 98:809 99:38
100:6 101:151 103:921 106:64 107:175 108:213
109:1566 110:761 111:901 112:445 113:560 114:636
115:777 116:883 117:726 118:923 119:1208 120:339
121:718 122:1659 123:1093 124:1369 125:1265 128:548
129:193 130:265 131:596 132:173 133:21 134:244
135:63 136:212 137:187 138:275 139:157 140:494
141:241 142:391 143:432 144:498 145:69 146:493
147:253 148:756 149:296 150:157 151:174 152:457
153:171 154:7 155:445 156:213 157:382 158:163
159:520 160:325 161:249 162:343 163:186 164:544
165:409 166:563 167:463 168:812 169:149 170:841
171:121 172:4 173:1735 174:592 175:446 176:458
177:577 178:1292 180:1156 181:73 182:771 183:277
184:448 185:1 186:2132 187:845 188:1143 189:1198
190:5495 192:6016 193:5623 194:4595 195:3683 196:1286
197:187 198:3634 199:4479 200:5763 201:1655 202:8472
203:8644 204:4358 205:2471 206:2767 207:2805 208:4082
209:3633 210:2785 211:1478 212:2036 213:1908 214:871
215:107 216:5066 217:1531 218:541 219:347 220:1237
221:553 222:331 223:328
End of report