The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, December 5, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Fri 06 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 470227
Prefixes after maximum aggregation: 188868
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234954
Total ASes present in the Internet Routing Table: 45535
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35471
Origin ASes announcing only one prefix: 16276
Transit ASes present in the Internet Routing Table: 5824
Transit-only ASes present in the Internet Routing Table: 160
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1101
Unregistered ASNs in the Routing Table: 295
Number of 32-bit ASNs allocated by the RIRs: 5446
Number of 32-bit ASNs visible in the Routing Table: 4240
Prefixes from 32-bit ASNs in the Routing Table: 13151
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1312
Number of addresses announced to Internet: 2655771648
Equivalent to 158 /8s, 75 /16s and 220 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162881

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110388
Total APNIC prefixes after maximum aggregation: 33517
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112610
Unique aggregates announced from the APNIC address blocks: 47909
APNIC Region origin ASes present in the Internet Routing Table: 4853
APNIC Prefixes per ASN: 23.20
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 810
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 772
Number of APNIC addresses announced to Internet: 728554496
Equivalent to 43 /8s, 108 /16s and 220 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162357
Total ARIN prefixes after maximum aggregation: 81548
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163206
Unique aggregates announced from the ARIN address blocks: 75657
ARIN Region origin ASes present in the Internet Routing Table: 15907
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 5998
ARIN Region transit ASes present in the Internet Routing Table: 1614
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 41
Number of ARIN addresses announced to Internet: 1072587264
Equivalent to 63 /8s, 238 /16s and 98 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119082
Total RIPE prefixes after maximum aggregation: 61065
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122842
Unique aggregates announced from the RIPE address blocks: 78949
RIPE Region origin ASes present in the Internet Routing Table: 17517
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8285
RIPE Region transit ASes present in the Internet Routing Table: 2794
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2506
Number of RIPE addresses announced to Internet: 655971584
Equivalent to 39 /8s, 25 /16s and 85 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52743
Total LACNIC prefixes after maximum aggregation: 9936
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57911
Unique aggregates announced from the LACNIC address blocks: 27368
LACNIC Region origin ASes present in the Internet Routing Table: 2040
LACNIC Prefixes per ASN: 28.39
LACNIC Region origin ASes announcing only one prefix: 556
LACNIC Region transit ASes present in the Internet Routing Table: 392
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 913
Number of LACNIC addresses announced to Internet: 145700352
Equivalent to 8 /8s, 175 /16s and 54 /24s
Percentage of available LACNIC address space announced: 86.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11706
Total AfriNIC prefixes after maximum aggregation: 2578
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12345
Unique aggregates announced from the AfriNIC address blocks: 4032
AfriNIC Region origin ASes present in the Internet Routing Table: 691
AfriNIC Prefixes per ASN: 17.87
AfriNIC Region origin ASes announcing only one prefix: 207
AfriNIC Region transit ASes present in the Internet Routing Table: 140
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48546304
Equivalent to 2 /8s, 228 /16s and 194 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2139 11550 641 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
4755 1794 392 190 TATA Communications formerly
9829 1538 1245 45 BSNL National Internet Backbo
4808 1290 2194 370 CNCGROUP IP network: China169
9583 1244 95 511 Sify Limited
9498 1218 309 73 BHARTI Airtel Ltd.
7552 1169 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3039 3688 53 BellSouth.net Inc.
22773 2211 2939 137 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2047 686 131 PaeTec Communications, Inc.
20115 1684 1657 600 Charter Communications
4323 1648 1098 419 Time Warner Telecom
701 1511 11144 784 MCI Communications Services,
30036 1381 311 581 Mediacom Communications Corp
7018 1344 17798 883 AT&T WorldNet Services
6983 1294 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1899 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1194 451 904 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 784 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1829 94 NET Servicos de Comunicao S.A
10620 2674 433 214 Telmex Colombia S.A.
7303 1733 1153 229 Telecom Argentina Stet-France
18881 1708 908 20 Global Village Telecom
8151 1358 2855 422 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 817 93 88 Telconet S.A
6147 795 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 775 434 60 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 871 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 231 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1829 94 NET Servicos de Comunicao S.A
6389 3039 3688 53 BellSouth.net Inc.
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2674 433 214 Telmex Colombia S.A.
22773 2211 2939 137 Cox Communications, Inc.
4766 2139 11550 641 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2047 686 131 PaeTec Communications, Inc.
8402 1899 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3039 2986 BellSouth.net Inc.
17974 2721 2633 PT TELEKOMUNIKASI INDONESIA
10620 2674 2460 Telmex Colombia S.A.
22773 2211 2074 Cox Communications, Inc.
7545 2112 2002 TPG Internet Pty Ltd
1785 2047 1916 PaeTec Communications, Inc.
8402 1899 1883 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1708 1688 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:476 /14:927 /15:1631 /16:12811 /17:6740 /18:11202
/19:23105 /20:32931 /21:35591 /22:50094 /23:43795 /24:250488
/25:3 /26:5 /27:10 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3039 BellSouth.net Inc.
8402 1605 1899 OJSC "Vimpelcom"
22773 1464 2211 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1183 1221 Cable One
1785 1087 2047 PaeTec Communications, Inc.
6983 1035 1294 ITC^Deltacom
22561 964 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:922 2:852 3:3 4:16 5:805 6:21
8:613 12:1878 13:3 14:900 15:11 16:3
17:19 18:19 20:25 23:615 24:1751 27:1694
31:1519 32:45 33:2 34:5 36:96 37:1943
38:918 39:5 40:181 41:3247 42:235 44:13
46:2055 47:10 49:704 50:856 52:12 54:44
55:4 56:4 57:26 58:1070 59:581 60:367
61:1480 62:1245 63:1975 64:4400 65:2329 66:4139
67:2102 68:1087 69:3294 70:896 71:504 72:2005
74:2575 75:324 76:293 77:1216 78:1018 79:669
80:1279 81:1051 82:630 83:755 84:586 85:1253
86:382 87:1040 88:548 89:1565 90:155 91:5693
92:613 93:1610 94:2116 95:1517 96:512 97:349
98:1059 99:41 100:32 101:690 103:3764 105:530
106:143 107:222 108:535 109:2011 110:976 111:1120
112:586 113:801 114:749 115:1043 116:1009 117:831
118:1227 119:1287 120:338 121:756 122:1866 123:1268
124:1383 125:1438 128:632 129:234 130:353 131:669
132:353 133:158 134:305 135:72 136:277 137:268
138:352 139:171 140:199 141:342 142:548 143:410
144:500 145:90 146:553 147:428 148:761 149:367
150:148 151:487 152:414 153:207 154:45 155:514
156:306 157:419 158:284 159:695 160:360 161:458
162:909 163:226 164:625 165:581 166:274 167:639
168:1044 169:125 170:1124 171:185 172:11 173:1625
174:667 175:540 176:1313 177:2475 178:1873 179:308
180:1599 181:890 182:1406 183:476 184:619 185:1088
186:2636 187:1440 188:1941 189:1251 190:7289 192:7081
193:5423 194:4032 195:3358 196:1338 197:1035 198:4746
199:5504 200:6048 201:2526 202:8940 203:8876 204:4526
205:2652 206:2891 207:2794 208:3963 209:3671 210:3026
211:1589 212:2176 213:1990 214:885 215:84 216:5410
217:1712 218:634 219:316 220:1264 221:587 222:332
223:519

End of report
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