Routing Table Report 08:00 +10GMT Tue 27 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 396193
Prefixes after maximum aggregation: 169432
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195550
Total ASes present in the Internet Routing Table: 38201
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 32945
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 1359
Unregistered ASNs in the Routing Table: 328
Number of 32-bit ASNs allocated by the RIRs: 2332
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5169
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 934
Number of addresses announced to Internet: 2545766144
Equivalent to 151 /8s, 189 /16s and 79 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
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: 167081
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92916
Total APNIC prefixes after maximum aggregation: 30633
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90326
Unique aggregates announced from the APNIC address blocks: 39483
APNIC Region origin ASes present in the Internet Routing Table: 4630
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 698
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641231872
Equivalent to 38 /8s, 56 /16s and 108 /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: 147862
Total ARIN prefixes after maximum aggregation: 75363
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119495
Unique aggregates announced from the ARIN address blocks: 49870
ARIN Region origin ASes present in the Internet Routing Table: 14872
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1504
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805043456
Equivalent to 47 /8s, 251 /16s and 253 /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: 101900
Total RIPE prefixes after maximum aggregation: 53095
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93294
Unique aggregates announced from the RIPE address blocks: 57174
RIPE Region origin ASes present in the Internet Routing Table: 16340
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7966
RIPE Region transit ASes present in the Internet Routing Table: 2588
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502313472
Equivalent to 29 /8s, 240 /16s and 178 /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: 38540
Total LACNIC prefixes after maximum aggregation: 8021
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38472
Unique aggregates announced from the LACNIC address blocks: 19786
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.60
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98535168
Equivalent to 5 /8s, 223 /16s and 135 /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: 8836
Total AfriNIC prefixes after maximum aggregation: 2115
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6913
Unique aggregates announced from the AfriNIC address blocks: 2196
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.27
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: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31504896
Equivalent to 1 /8s, 224 /16s and 186 /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 1928 11106 678 Korea Telecom (KIX)
17974 1689 502 60 PT Telekomunikasi Indonesia
7545 1653 303 90 TPG Internet Pty Ltd
4755 1554 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1208 1025 29 National Internet Backbone
7552 1035 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 982 1945 281 CNCGROUP IP network China169
18101 949 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1889 680 128 PaeTec Communications, Inc.
20115 1633 1559 626 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1404 253 740 Mediacom Communications Corp
7018 1289 9809 842 AT&T Services, Inc.
11492 1166 212 410 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1695 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 NEUF CEGETEL (formerly LDCOM
31148 672 37 9 FreeNet ISP
34984 665 188 173 BILISIM TELEKOM
12479 642 654 56 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 623 202 489 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1807 329 130 Types of queries are: POCs, o
28573 1725 1099 60 Types of queries are: POCs, o
7303 1351 826 190 Telecom Argentina S.A.
8151 1349 2998 344 Uninet S.A. de C.V.
26615 901 684 29 Tim Celular S.A.
27947 665 69 111 Telconet S.A
11172 637 107 73 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 565 239 96 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1268 958 13 TEDATA
24863 842 274 34 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 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1928 11106 678 Korea Telecom (KIX)
1785 1889 680 128 PaeTec Communications, Inc.
10620 1807 329 130 Types of queries are: POCs, o
28573 1725 1099 60 Types of queries are: POCs, o
8402 1695 544 16 Corbina telecom
17974 1689 502 60 PT Telekomunikasi Indonesia
7545 1653 303 90 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3372 3175 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1889 1761 PaeTec Communications, Inc.
8402 1695 1679 Corbina telecom
10620 1807 1677 Types of queries are: POCs, o
28573 1725 1665 Types of queries are: POCs, o
17974 1689 1629 PT Telekomunikasi Indonesia
7545 1653 1563 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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/london/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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:458 /14:822 /15:1475 /16:12128 /17:6234 /18:10374
/19:20545 /20:28499 /21:29315 /22:39667 /23:37131 /24:208622
/25:11 /26:21 /27:20 /28:151 /29:141 /30:66
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3052 3409 Windstream Communications Inc
6389 2088 3372 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1704 1807 Types of queries are: POCs, o
8402 1672 1695 Corbina telecom
30036 1352 1404 Mediacom Communications Corp
11492 1129 1166 CABLE ONE, INC.
8452 1078 1268 TEDATA
1785 1067 1889 PaeTec Communications, Inc.
7011 1048 1162 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:691 4:14 6:3 8:391 12:1969
13:1 14:597 15:12 16:3 17:7 20:8
23:150 24:1736 27:1249 31:962 32:53 33:2
34:2 36:8 37:292 38:776 40:120 41:3014
42:130 44:3 46:1452 47:3 49:339 50:534
52:13 54:6 55:10 56:3 57:30 58:923
59:484 60:274 61:1088 62:1004 63:1991 64:4173
65:2272 66:4497 67:2009 68:1145 69:3185 70:901
71:438 72:1809 74:2587 75:491 76:320 77:964
78:976 79:499 80:1229 81:906 82:651 83:552
84:614 85:1191 86:739 87:915 88:343 89:1620
90:297 91:4638 92:519 93:1506 94:1439 95:1150
96:370 97:315 98:830 99:37 100:5 101:154
103:899 106:63 107:178 108:207 109:1551 110:739
111:901 112:432 113:547 114:620 115:761 116:885
117:704 118:905 119:1187 120:335 121:672 122:1621
123:1093 124:1299 125:1256 128:521 129:185 130:253
131:592 132:165 133:21 134:233 135:63 136:209
137:191 138:349 139:144 140:468 141:240 142:370
143:403 144:497 145:69 146:485 147:244 148:697
149:296 150:148 151:175 152:457 153:171 154:6
155:444 156:210 157:331 158:166 159:451 160:325
161:231 162:340 163:178 164:543 165:391 166:558
167:463 168:801 169:147 170:845 171:124 172:2
173:1716 174:614 175:422 176:458 177:601 178:1294
180:1136 181:73 182:744 183:276 184:442 185:1
186:2145 187:860 188:1155 189:1183 190:5506 192:5952
193:5593 194:4615 195:3635 196:1263 197:177 198:3576
199:4428 200:5661 201:1653 202:8198 203:8492 204:4264
205:2447 206:2648 207:2731 208:4045 209:3584 210:2682
211:1443 212:1992 213:1907 214:873 215:106 216:5054
217:1530 218:523 219:328 220:1228 221:536 222:297
223:314
End of report
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